grammar.bgf

<?xml version="1.0" encoding="UTF-8"?>

<xns1:grammar xmlns:xns1="http://planet-sl.org/bgf">
  <xns1:production>
    <nonterminal>Thing</nonterminal>
    <xns1:expression>
      <nonterminal>Role</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Thing</nonterminal>
    <xns1:expression>
      <nonterminal>Detail</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Thing</nonterminal>
    <xns1:expression>
      <nonterminal>Review_expertise</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Thing</nonterminal>
    <xns1:expression>
      <nonterminal>Review_preference</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Thing</nonterminal>
    <xns1:expression>
      <nonterminal>date</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Thing</nonterminal>
    <xns1:expression>
      <nonterminal>URL</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Thing</nonterminal>
    <xns1:expression>
      <nonterminal>conference_setup</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Thing</nonterminal>
    <xns1:expression>
      <nonterminal>Contribution</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Thing</nonterminal>
    <xns1:expression>
      <nonterminal>Person</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Thing</nonterminal>
    <xns1:expression>
      <nonterminal>Event</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Thing</nonterminal>
    <xns1:expression>
      <nonterminal>Place</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Thing</nonterminal>
    <xns1:expression>
      <nonterminal>City</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Thing</nonterminal>
    <xns1:expression>
      <nonterminal>Activity</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Thing</nonterminal>
    <xns1:expression>
      <nonterminal>OrganizingCommittee</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Thing</nonterminal>
    <xns1:expression>
      <nonterminal>ActivitySubmissionForm</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Thing</nonterminal>
    <xns1:expression>
      <nonterminal>DoubleBlindReview</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Thing</nonterminal>
    <xns1:expression>
      <nonterminal>ConferenceProgram</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Thing</nonterminal>
    <xns1:expression>
      <nonterminal>Slot</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Thing</nonterminal>
    <xns1:expression>
      <nonterminal>ResearchTopic</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Thing</nonterminal>
    <xns1:expression>
      <nonterminal>OutputDocument</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Thing</nonterminal>
    <xns1:expression>
      <nonterminal>ProgramCommittee</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Thing</nonterminal>
    <xns1:expression>
      <nonterminal>Criterion</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Thing</nonterminal>
    <xns1:expression>
      <nonterminal>Session</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Thing</nonterminal>
    <xns1:expression>
      <nonterminal>Organizer</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Thing</nonterminal>
    <xns1:expression>
      <nonterminal>Document</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Thing</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>Role</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Detail</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Review_expertise</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Review_preference</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>date</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>URL</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>conference_setup</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Contribution</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Person</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Event</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Place</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>City</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Activity</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>OrganizingCommittee</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>ActivitySubmissionForm</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>DoubleBlindReview</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>ConferenceProgram</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Slot</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>ResearchTopic</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>OutputDocument</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>ProgramCommittee</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Criterion</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Meta-Reviewer</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>assignedByAdministrator</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>adjustBid</selector>
	    <xns1:expression>
	      <nonterminal>Bid</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>readPaper</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasBeenAssigned</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>assignExternalReviewer</selector>
	    <xns1:expression>
	      <nonterminal>ExternalReviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>invites_co-reviewers</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>invited_by</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>has_a_review_reference_or_expertise</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasReviewHistory</selector>
	    <xns1:expression>
	      <nonterminal>PersonalReviewHistory</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>executes</selector>
	    <xns1:expression>
	      <nonterminal>DoubleBlindReview</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>cooperates</selector>
	    <xns1:expression>
	      <nonterminal>ExternalReviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>IsAssignedTo</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasConflictedPaper</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasPreferredPaper</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasPreferredTopic</selector>
	    <xns1:expression>
	      <nonterminal>ResearchTopic</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>writeReview</selector>
	    <xns1:expression>
	      <nonterminal>Review</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_made_review</selector>
	    <xns1:expression>
	      <nonterminal>Paper_Review</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>UserName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Comments_to_Chair</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Other_Areas</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Decision</nonterminal>
    <xns1:expression>
      <nonterminal>Acceptance</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Decision</nonterminal>
    <xns1:expression>
      <nonterminal>Rejection</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Decision</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>Acceptance</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Rejection</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Preference</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Bid</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>adjustedBy</selector>
	<xns1:expression>
	  <nonterminal>Reviewer</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference</nonterminal>
    <xns1:expression>
      <nonterminal>Conference_volume</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference</nonterminal>
    <xns1:expression>
      <nonterminal>TwoLevelConference</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference</nonterminal>
    <xns1:expression>
      <nonterminal>SingleLevelConference</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>is_in_phase</selector>
	    <xns1:expression>
	      <nonterminal>phase_of_conference</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_program</selector>
	    <xns1:expression>
	      <nonterminal>program</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasMember</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>endDate</selector>
	    <xns1:expression>
	      <nonterminal>dateTime</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperDueOn</selector>
	    <xns1:expression>
	      <nonterminal>dateTime</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>registrationDueOn</selector>
	    <xns1:expression>
	      <nonterminal>dateTime</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>manuscriptDueOn</selector>
	    <xns1:expression>
	      <nonterminal>dateTime</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>startDate</selector>
	    <xns1:expression>
	      <nonterminal>dateTime</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasCountry</selector>
	    <xns1:expression>
	      <nonterminal>Country</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isOrganizedBy</selector>
	    <xns1:expression>
	      <nonterminal>OrganizingCommittee</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>annualOrder</selector>
	    <xns1:expression>
	      <nonterminal>Integer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>takesPlace</selector>
	    <xns1:expression>
	      <nonterminal>Location</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAcronym</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasConferenceMember</selector>
	    <xns1:expression>
	      <nonterminal>ConferenceMember</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperAssignmentFinalizedBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>reviewCriteriaEnteredBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperAssignmentToolsRunBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>virtualMeetingEnabledBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hardcopyMailingManifestsPrintedBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>detailsEnteredBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>reviewerBiddingStartedBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>date</selector>
	    <xns1:expression>
	      <nonterminal>date</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>reviewsPerPaper</selector>
	    <xns1:expression>
	      <nonterminal>Integer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>logoURL</selector>
	    <xns1:expression>
	      <nonterminal>anyURI</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>acceptsHardcopySubmissions</selector>
	    <xns1:expression>
	      <nonterminal>Boolean</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>siteURL</selector>
	    <xns1:expression>
	      <nonterminal>anyURI</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ConferenceChair</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>memberOfConference</selector>
	<xns1:expression>
	  <nonterminal>Conference</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ConferenceChair</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>inverse_of_add</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>execute</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>get</selector>
	    <xns1:expression>
	      <nonterminal>Inforamtion</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>use</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>register</selector>
	    <xns1:expression>
	      <nonterminal>Account</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>modify</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>take_part_in</selector>
	    <xns1:expression>
	      <nonterminal>Event</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>remove</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>add</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>added_by</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasConflictOfInterest</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>email</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>contributes</selector>
	    <xns1:expression>
	      <nonterminal>Conference_document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_an_email</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_the_first_name</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_gender</selector>
	    <xns1:expression>
	      <nonterminal>EEnum</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_the_last_name</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>authorOf</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>prepare</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>occupy</selector>
		<xns1:expression>
		  <nonterminal>Presenter_city</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>is_present_in</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>write</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>obtain</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>send</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>speak_in</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>pay</selector>
	    <xns1:expression>
	      <nonterminal>Money</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>sign</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_present</selector>
	    <xns1:expression>
	      <nonterminal>Time</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>give</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>need</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasMail</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>worksForCompany</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAffiliation</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFirstName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasLastName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>employedBy</selector>
	    <xns1:expression>
	      <nonterminal>Organization</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasHomePage</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSurname</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFax</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFirstName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasPhone</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasEmail</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>attendeeAt</selector>
	    <xns1:expression>
	      <nonterminal>ConferenceEvent</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isMemberOf</selector>
	    <xns1:expression>
	      <nonterminal>Conference</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFirstName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasBiography</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasLastName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ConferenceMember</nonterminal>
    <xns1:expression>
      <nonterminal>ConferenceChair</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ConferenceMember</nonterminal>
    <xns1:expression>
      <nonterminal>AssociatedChair</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ConferenceMember</nonterminal>
    <xns1:expression>
      <nonterminal>Chairman</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ConferenceMember</nonterminal>
    <xns1:expression>
      <nonterminal>ProgramCommitteeMember</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ConferenceMember</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>memberOfConference</selector>
	<xns1:expression>
	  <nonterminal>Conference</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>AssociatedChair</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>memberOfConference</selector>
	<xns1:expression>
	  <nonterminal>Conference</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>AuthorNotReviewer</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>submitPaper</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>writes</selector>
	    <xns1:expression>
	      <nonterminal>Contribution</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>writes_article</selector>
	    <xns1:expression>
	      <nonterminal>article</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>assigns_article_to_conference</selector>
	    <xns1:expression>
	      <nonterminal>article</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasRelatedPaper</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>conflictsWith</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isAuthorOf</selector>
	    <xns1:expression>
	      <nonterminal>ActivitySubmissionForm</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>conducts</selector>
	    <xns1:expression>
	      <nonterminal>Thing</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>submitsPaper</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>writePaper</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>writes_Paper</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>SubjectArea</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ExternalReviewer</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>assignedByReviewer</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>cooperatesReviewer</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Chairman</nonterminal>
    <xns1:expression>
      <nonterminal>ConferenceChair</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Chairman</nonterminal>
    <xns1:expression>
      <nonterminal>AssociatedChair</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Chairman</nonterminal>
    <xns1:expression>
      <nonterminal>ProgramCommitteeChair</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Chairman</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>inverse_of_add</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>execute</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>get</selector>
	    <xns1:expression>
	      <nonterminal>Inforamtion</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>use</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>register</selector>
	    <xns1:expression>
	      <nonterminal>Account</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>modify</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>take_part_in</selector>
	    <xns1:expression>
	      <nonterminal>Event</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>remove</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>add</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>added_by</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasConflictOfInterest</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>email</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>contributes</selector>
	    <xns1:expression>
	      <nonterminal>Conference_document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_an_email</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_the_first_name</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_gender</selector>
	    <xns1:expression>
	      <nonterminal>EEnum</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_the_last_name</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>authorOf</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>prepare</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>occupy</selector>
		<xns1:expression>
		  <nonterminal>Presenter_city</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>is_present_in</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>write</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>obtain</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>send</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>speak_in</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>pay</selector>
	    <xns1:expression>
	      <nonterminal>Money</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>sign</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_present</selector>
	    <xns1:expression>
	      <nonterminal>Time</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>give</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>need</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasMail</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>worksForCompany</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAffiliation</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFirstName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasLastName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>employedBy</selector>
	    <xns1:expression>
	      <nonterminal>Organization</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasHomePage</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSurname</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFax</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFirstName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasPhone</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasEmail</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>attendeeAt</selector>
	    <xns1:expression>
	      <nonterminal>ConferenceEvent</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isMemberOf</selector>
	    <xns1:expression>
	      <nonterminal>Conference</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFirstName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasBiography</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasLastName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>memberOfConference</selector>
	    <xns1:expression>
	      <nonterminal>Conference</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ProgramCommitteeChair</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>endReview</selector>
	<xns1:expression>
	  <nonterminal>Review</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Acceptance</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Rejection</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Paper</nonterminal>
    <xns1:expression>
      <nonterminal>PaperFullVersion</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Paper</nonterminal>
    <xns1:expression>
      <nonterminal>Invited_Paper</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Paper</nonterminal>
    <xns1:expression>
      <nonterminal>Short_Paper</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Paper</nonterminal>
    <xns1:expression>
      <nonterminal>Full_Paper</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Paper</nonterminal>
    <xns1:expression>
      <nonterminal>Accepted_Paper</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Paper</nonterminal>
    <xns1:expression>
      <nonterminal>Rejected_Paper</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Paper</nonterminal>
    <xns1:expression>
      <nonterminal>Undecided_Paper</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Paper</nonterminal>
    <xns1:expression>
      <nonterminal>ActivePaper</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Paper</nonterminal>
    <xns1:expression>
      <nonterminal>PendingPaper</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Paper</nonterminal>
    <xns1:expression>
      <nonterminal>WithdrawnPaper</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Paper</nonterminal>
    <xns1:expression>
      <nonterminal>RejectedPaper</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Paper</nonterminal>
    <xns1:expression>
      <nonterminal>PublishedPaper</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Paper</nonterminal>
    <xns1:expression>
      <nonterminal>Camera_Ready_Paper</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Paper</nonterminal>
    <xns1:expression>
      <nonterminal>Workshop_Paper</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Paper</nonterminal>
    <xns1:expression>
      <nonterminal>Industrial_Paper</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Paper</nonterminal>
    <xns1:expression>
      <nonterminal>Conference_Paper</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Paper</nonterminal>
    <xns1:expression>
      <nonterminal>Submitted_Paper</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Paper</nonterminal>
    <xns1:expression>
      <nonterminal>Poster_Paper</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Paper</nonterminal>
    <xns1:expression>
      <nonterminal>Regular_Paper</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Paper</nonterminal>
    <xns1:expression>
      <nonterminal>Demo_Paper</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Paper</nonterminal>
    <xns1:expression>
      <nonterminal>AcceptedPaper</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Paper</nonterminal>
    <xns1:expression>
      <nonterminal>Abstract</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Paper</nonterminal>
    <xns1:expression>
      <nonterminal>PaperAbstract</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Paper</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>full_paper_size</selector>
	    <xns1:expression>
	      <nonterminal>Integer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isWrittenBy</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>isReviewedBy</selector>
		<xns1:expression>
		  <nonterminal>Person</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasReview</selector>
	    <xns1:expression>
	      <nonterminal>Review</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasReviewer</selector>
	    <xns1:expression>
	      <nonterminal>Possible_Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperIsSubmittedBy</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isRejectedBy</selector>
	    <xns1:expression>
	      <nonterminal>Chair</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isAcceptedBy</selector>
	    <xns1:expression>
	      <nonterminal>Chair</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperIsAssignedTo</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSecondaryTopic</selector>
	    <xns1:expression>
	      <nonterminal>ResearchTopic</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasMainTopic</selector>
	    <xns1:expression>
	      <nonterminal>ResearchTopic</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAuthor</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasStatus</selector>
	    <xns1:expression>
	      <nonterminal>PaperStatus</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasTitle</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasID</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAbstract</selector>
	    <xns1:expression>
	      <nonterminal>PaperAbstract</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isRatedBy</selector>
	    <xns1:expression>
	      <nonterminal>Review</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_written_by</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Abstract</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Title</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Students</selector>
	    <xns1:expression>
	      <nonterminal>Boolean</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Keywords</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasCo-author</selector>
	    <xns1:expression>
	      <nonterminal>Co-author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasBid</selector>
	    <xns1:expression>
	      <nonterminal>Bid</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasDecision</selector>
	    <xns1:expression>
	      <nonterminal>Decision</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>assignedTo</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSubjectArea</selector>
	    <xns1:expression>
	      <nonterminal>SubjectArea</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>readByReviewer</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperID</selector>
	    <xns1:expression>
	      <nonterminal>unsignedLong</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>title</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>acceptedBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>rejectedBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>readByMeta-Reviewer</selector>
	    <xns1:expression>
	      <nonterminal>Meta-Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>User</nonterminal>
    <xns1:expression>
      <nonterminal>Committee</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>User</nonterminal>
    <xns1:expression>
      <nonterminal>Administrator</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>User</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>recieve</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>create</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>submit</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Co-author</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>co-writePaper</selector>
	<xns1:expression>
	  <nonterminal>Paper</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>PaperFullVersion</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>full_paper_size</selector>
	    <xns1:expression>
	      <nonterminal>Integer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isWrittenBy</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>isReviewedBy</selector>
		<xns1:expression>
		  <nonterminal>Person</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasReview</selector>
	    <xns1:expression>
	      <nonterminal>Review</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasReviewer</selector>
	    <xns1:expression>
	      <nonterminal>Possible_Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperIsSubmittedBy</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isRejectedBy</selector>
	    <xns1:expression>
	      <nonterminal>Chair</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isAcceptedBy</selector>
	    <xns1:expression>
	      <nonterminal>Chair</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperIsAssignedTo</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSecondaryTopic</selector>
	    <xns1:expression>
	      <nonterminal>ResearchTopic</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasMainTopic</selector>
	    <xns1:expression>
	      <nonterminal>ResearchTopic</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAuthor</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasStatus</selector>
	    <xns1:expression>
	      <nonterminal>PaperStatus</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasTitle</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasID</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAbstract</selector>
	    <xns1:expression>
	      <nonterminal>PaperAbstract</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isRatedBy</selector>
	    <xns1:expression>
	      <nonterminal>Review</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_written_by</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Abstract</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Title</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Students</selector>
	    <xns1:expression>
	      <nonterminal>Boolean</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Keywords</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasCo-author</selector>
	    <xns1:expression>
	      <nonterminal>Co-author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasBid</selector>
	    <xns1:expression>
	      <nonterminal>Bid</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasDecision</selector>
	    <xns1:expression>
	      <nonterminal>Decision</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>assignedTo</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSubjectArea</selector>
	    <xns1:expression>
	      <nonterminal>SubjectArea</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>readByReviewer</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperID</selector>
	    <xns1:expression>
	      <nonterminal>unsignedLong</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>title</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>acceptedBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>rejectedBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>readByMeta-Reviewer</selector>
	    <xns1:expression>
	      <nonterminal>Meta-Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Administrator</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>approve</selector>
	    <xns1:expression>
	      <nonterminal>Event</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>assign</selector>
	    <xns1:expression>
	      <nonterminal>Role</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>assigns</selector>
	    <xns1:expression>
	      <nonterminal>Thing</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>finalizePaperAssignment</selector>
	    <xns1:expression>
	      <nonterminal>Conference</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>runPaperAssignmentTools</selector>
	    <xns1:expression>
	      <nonterminal>Conference</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>enableVirtualMeeting</selector>
	    <xns1:expression>
	      <nonterminal>Conference</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>startReviewerBidding</selector>
	    <xns1:expression>
	      <nonterminal>Conference</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>assignReviewer</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>rejectPaper</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>enterConferenceDetails</selector>
	    <xns1:expression>
	      <nonterminal>Conference</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>printHardcopyMailingManifests</selector>
	    <xns1:expression>
	      <nonterminal>Conference</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>setMaxPapers</selector>
	    <xns1:expression>
	      <nonterminal>ProgramCommitteeMember</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>enterReviewCriteria</selector>
	    <xns1:expression>
	      <nonterminal>Conference</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>acceptPaper</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>addProgramCommitteeMember</selector>
	    <xns1:expression>
	      <nonterminal>ProgramCommitteeMember</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Meta-Review</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>writtenBy</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>reviews</selector>
	    <xns1:expression>
	      <nonterminal>Reviewed_contribution</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>gives_classification</selector>
	    <xns1:expression>
	      <nonterminal>classification</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_created_in</selector>
	    <xns1:expression>
	      <nonterminal>Activity</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>review_written_by</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>reviewOfPaper</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>reviewWrittenBy</selector>
	    <xns1:expression>
	      <nonterminal>Possible_Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>containsEvaluation</selector>
	    <xns1:expression>
	      <nonterminal>Evaluation</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>rates</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isWritenBy</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Account</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>registred_by</selector>
	<xns1:expression>
	  <nonterminal>Person</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Inforamtion</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Role</nonterminal>
    <xns1:expression>
      <nonterminal>Admin_Role</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Role</nonterminal>
    <xns1:expression>
      <nonterminal>Author_Role</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Role</nonterminal>
    <xns1:expression>
      <nonterminal>Committe_Role</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Role</nonterminal>
    <xns1:expression>
      <nonterminal>Head_Role</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Role</nonterminal>
    <xns1:expression>
      <nonterminal>Reviewer_Role</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Role</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>assigned_by</selector>
	<xns1:expression>
	  <nonterminal>Administrator</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Help_Request</nonterminal>
    <xns1:expression>
      <nonterminal>Misc</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Help_Request</nonterminal>
    <xns1:expression>
      <nonterminal>Feature_Request</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Help_Request</nonterminal>
    <xns1:expression>
      <nonterminal>Assistance</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Help_Request</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>Misc</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Feature_Request</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Assistance</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Symposium</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>conists_of</selector>
	    <xns1:expression>
	      <nonterminal>Event_Tracks</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>confirmed_by</selector>
	    <xns1:expression>
	      <nonterminal>Approval_Email</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>defined_by</selector>
	    <xns1:expression>
	      <nonterminal>Event_Setup</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>approved_by</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>starts_on</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>ends_on</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_startdate</selector>
	    <xns1:expression>
	      <nonterminal>dateTime</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_enddate</selector>
	    <xns1:expression>
	      <nonterminal>dateTime</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>eventOnList</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>partOfEvent</selector>
	    <xns1:expression>
	      <nonterminal>Event</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasEvent</selector>
	    <xns1:expression>
	      <nonterminal>Event</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>organisedBy</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>heldIn</selector>
	    <xns1:expression>
	      <nonterminal>Location</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Invited_Paper</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>full_paper_size</selector>
	    <xns1:expression>
	      <nonterminal>Integer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isWrittenBy</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>isReviewedBy</selector>
		<xns1:expression>
		  <nonterminal>Person</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasReview</selector>
	    <xns1:expression>
	      <nonterminal>Review</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasReviewer</selector>
	    <xns1:expression>
	      <nonterminal>Possible_Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperIsSubmittedBy</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isRejectedBy</selector>
	    <xns1:expression>
	      <nonterminal>Chair</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isAcceptedBy</selector>
	    <xns1:expression>
	      <nonterminal>Chair</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperIsAssignedTo</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSecondaryTopic</selector>
	    <xns1:expression>
	      <nonterminal>ResearchTopic</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasMainTopic</selector>
	    <xns1:expression>
	      <nonterminal>ResearchTopic</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAuthor</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasStatus</selector>
	    <xns1:expression>
	      <nonterminal>PaperStatus</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasTitle</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasID</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAbstract</selector>
	    <xns1:expression>
	      <nonterminal>PaperAbstract</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isRatedBy</selector>
	    <xns1:expression>
	      <nonterminal>Review</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_written_by</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Abstract</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Title</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Students</selector>
	    <xns1:expression>
	      <nonterminal>Boolean</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Keywords</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasCo-author</selector>
	    <xns1:expression>
	      <nonterminal>Co-author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasBid</selector>
	    <xns1:expression>
	      <nonterminal>Bid</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasDecision</selector>
	    <xns1:expression>
	      <nonterminal>Decision</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>assignedTo</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSubjectArea</selector>
	    <xns1:expression>
	      <nonterminal>SubjectArea</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>readByReviewer</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperID</selector>
	    <xns1:expression>
	      <nonterminal>unsignedLong</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>title</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>acceptedBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>rejectedBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>readByMeta-Reviewer</selector>
	    <xns1:expression>
	      <nonterminal>Meta-Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Admin_Role</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>assigned_by</selector>
	<xns1:expression>
	  <nonterminal>Administrator</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Paper_Typologies</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>define</selector>
	<xns1:expression>
	  <nonterminal>Event</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Event_Setup</nonterminal>
    <xns1:expression>
      <nonterminal>Paper_Typologies</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Event_Setup</nonterminal>
    <xns1:expression>
      <nonterminal>Review_Form</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Event_Setup</nonterminal>
    <xns1:expression>
      <nonterminal>Submission_Template</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Event_Setup</nonterminal>
    <xns1:expression>
      <nonterminal>Event_Tracks</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Event_Setup</nonterminal>
    <xns1:expression>
      <nonterminal>Research_Topic</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Event_Setup</nonterminal>
    <xns1:expression>
      <nonterminal>Email_Template</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Event_Setup</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>define</selector>
	<xns1:expression>
	  <nonterminal>Event</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Event_URL</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>concerned</selector>
	<xns1:expression>
	  <nonterminal>Event</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Notification_Email</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Email</nonterminal>
    <xns1:expression>
      <nonterminal>Notification_Email</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Email</nonterminal>
    <xns1:expression>
      <nonterminal>Group_Email</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Email</nonterminal>
    <xns1:expression>
      <nonterminal>Approval_Email</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Email</nonterminal>
    <xns1:expression>
      <nonterminal>Rejection_Email</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Email</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>Notification_Email</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Group_Email</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Approval_Email</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Rejection_Email</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Short_Paper</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>full_paper_size</selector>
	    <xns1:expression>
	      <nonterminal>Integer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isWrittenBy</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>isReviewedBy</selector>
		<xns1:expression>
		  <nonterminal>Person</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasReview</selector>
	    <xns1:expression>
	      <nonterminal>Review</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasReviewer</selector>
	    <xns1:expression>
	      <nonterminal>Possible_Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperIsSubmittedBy</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isRejectedBy</selector>
	    <xns1:expression>
	      <nonterminal>Chair</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isAcceptedBy</selector>
	    <xns1:expression>
	      <nonterminal>Chair</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperIsAssignedTo</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSecondaryTopic</selector>
	    <xns1:expression>
	      <nonterminal>ResearchTopic</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasMainTopic</selector>
	    <xns1:expression>
	      <nonterminal>ResearchTopic</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAuthor</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasStatus</selector>
	    <xns1:expression>
	      <nonterminal>PaperStatus</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasTitle</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasID</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAbstract</selector>
	    <xns1:expression>
	      <nonterminal>PaperAbstract</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isRatedBy</selector>
	    <xns1:expression>
	      <nonterminal>Review</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_written_by</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Abstract</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Title</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Students</selector>
	    <xns1:expression>
	      <nonterminal>Boolean</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Keywords</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasCo-author</selector>
	    <xns1:expression>
	      <nonterminal>Co-author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasBid</selector>
	    <xns1:expression>
	      <nonterminal>Bid</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasDecision</selector>
	    <xns1:expression>
	      <nonterminal>Decision</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>assignedTo</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSubjectArea</selector>
	    <xns1:expression>
	      <nonterminal>SubjectArea</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>readByReviewer</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperID</selector>
	    <xns1:expression>
	      <nonterminal>unsignedLong</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>title</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>acceptedBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>rejectedBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>readByMeta-Reviewer</selector>
	    <xns1:expression>
	      <nonterminal>Meta-Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Author_Role</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>assigned_by</selector>
	<xns1:expression>
	  <nonterminal>Administrator</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Preview</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Review_Form</nonterminal>
    <xns1:expression>
      <nonterminal>Preview</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Review_Form</nonterminal>
    <xns1:expression>
      <nonterminal>Review_Form_Setup</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Review_Form</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>Preview</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Review_Form_Setup</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Committe_Role</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>assigned_by</selector>
	<xns1:expression>
	  <nonterminal>Administrator</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Group_Email</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Submission_Template</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>define</selector>
	<xns1:expression>
	  <nonterminal>Event</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Review_Form_Setup</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Misc</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Event_Creation</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>has_result</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>sent_by</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_followed_by</selector>
	    <xns1:expression>
	      <nonterminal>Activity</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_monitored_by</selector>
	    <xns1:expression>
	      <nonterminal>human</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_intensity</selector>
	    <xns1:expression>
	      <nonterminal>intensity</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_result</selector>
	    <xns1:expression>
	      <nonterminal>article</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_performed_by</selector>
	    <xns1:expression>
	      <nonterminal>human</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_supervised_by</selector>
	    <xns1:expression>
	      <nonterminal>human</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_held_before</selector>
	    <xns1:expression>
	      <nonterminal>Time</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_held_in</selector>
	    <xns1:expression>
	      <nonterminal>Thing</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_held_after</selector>
	    <xns1:expression>
	      <nonterminal>Time</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_dated_on</selector>
	    <xns1:expression>
	      <nonterminal>dateTime</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasTopic</selector>
	    <xns1:expression>
	      <nonterminal>Topic</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>expectedAttendance</selector>
	    <xns1:expression>
	      <nonterminal>Integer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isPartOf</selector>
	    <xns1:expression>
	      <nonterminal>Conference</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Approval_Email</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>confirm</selector>
	<xns1:expression>
	  <nonterminal>Event</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Rejection_Email</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Template</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>recieved_by</selector>
	    <xns1:expression>
	      <nonterminal>User</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>used_by</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>submited__by</selector>
	    <xns1:expression>
	      <nonterminal>User</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>relatesTo</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>writtenBy</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasUpdatedVersion</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>updatedVersionOf</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Feature_Request</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Committee</nonterminal>
    <xns1:expression>
      <nonterminal>Program_committee</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Committee</nonterminal>
    <xns1:expression>
      <nonterminal>Organizing_committee</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Committee</nonterminal>
    <xns1:expression>
      <nonterminal>Steering_committee</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Committee</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>has_members</selector>
	    <xns1:expression>
	      <nonterminal>Committee_member</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>was_a_committee_of</selector>
	    <xns1:expression>
	      <nonterminal>Conference_volume</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_a_committee_co-chair</selector>
	    <xns1:expression>
	      <nonterminal>Co-chair</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_a_committee_chair</selector>
	    <xns1:expression>
	      <nonterminal>Chair</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Event_Tracks</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>define</selector>
	<xns1:expression>
	  <nonterminal>Event</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Request</nonterminal>
    <xns1:expression>
      <nonterminal>Help_Request</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Head_Role</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>assigned_by</selector>
	<xns1:expression>
	  <nonterminal>Administrator</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Detail</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Corresponding_Author</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>submitPaper</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>writes</selector>
	    <xns1:expression>
	      <nonterminal>Contribution</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>writes_article</selector>
	    <xns1:expression>
	      <nonterminal>article</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>assigns_article_to_conference</selector>
	    <xns1:expression>
	      <nonterminal>article</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasRelatedPaper</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>conflictsWith</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isAuthorOf</selector>
	    <xns1:expression>
	      <nonterminal>ActivitySubmissionForm</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>conducts</selector>
	    <xns1:expression>
	      <nonterminal>Thing</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>submitsPaper</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>writePaper</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>writes_Paper</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Reviewer_Role</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>assigned_by</selector>
	<xns1:expression>
	  <nonterminal>Administrator</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Event_Approval</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>has_result</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>sent_by</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_followed_by</selector>
	    <xns1:expression>
	      <nonterminal>Activity</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_monitored_by</selector>
	    <xns1:expression>
	      <nonterminal>human</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_intensity</selector>
	    <xns1:expression>
	      <nonterminal>intensity</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_result</selector>
	    <xns1:expression>
	      <nonterminal>article</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_performed_by</selector>
	    <xns1:expression>
	      <nonterminal>human</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_supervised_by</selector>
	    <xns1:expression>
	      <nonterminal>human</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_held_before</selector>
	    <xns1:expression>
	      <nonterminal>Time</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_held_in</selector>
	    <xns1:expression>
	      <nonterminal>Thing</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_held_after</selector>
	    <xns1:expression>
	      <nonterminal>Time</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_dated_on</selector>
	    <xns1:expression>
	      <nonterminal>dateTime</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasTopic</selector>
	    <xns1:expression>
	      <nonterminal>Topic</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>expectedAttendance</selector>
	    <xns1:expression>
	      <nonterminal>Integer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isPartOf</selector>
	    <xns1:expression>
	      <nonterminal>Conference</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Registration</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>has_result</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>sent_by</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_followed_by</selector>
	    <xns1:expression>
	      <nonterminal>Activity</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_monitored_by</selector>
	    <xns1:expression>
	      <nonterminal>human</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_intensity</selector>
	    <xns1:expression>
	      <nonterminal>intensity</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_result</selector>
	    <xns1:expression>
	      <nonterminal>article</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_performed_by</selector>
	    <xns1:expression>
	      <nonterminal>human</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_supervised_by</selector>
	    <xns1:expression>
	      <nonterminal>human</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_held_before</selector>
	    <xns1:expression>
	      <nonterminal>Time</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_held_in</selector>
	    <xns1:expression>
	      <nonterminal>Thing</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_held_after</selector>
	    <xns1:expression>
	      <nonterminal>Time</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_dated_on</selector>
	    <xns1:expression>
	      <nonterminal>dateTime</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasTopic</selector>
	    <xns1:expression>
	      <nonterminal>Topic</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>expectedAttendance</selector>
	    <xns1:expression>
	      <nonterminal>Integer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isPartOf</selector>
	    <xns1:expression>
	      <nonterminal>Conference</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Registration</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Full_Paper</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>full_paper_size</selector>
	    <xns1:expression>
	      <nonterminal>Integer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isWrittenBy</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>isReviewedBy</selector>
		<xns1:expression>
		  <nonterminal>Person</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasReview</selector>
	    <xns1:expression>
	      <nonterminal>Review</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasReviewer</selector>
	    <xns1:expression>
	      <nonterminal>Possible_Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperIsSubmittedBy</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isRejectedBy</selector>
	    <xns1:expression>
	      <nonterminal>Chair</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isAcceptedBy</selector>
	    <xns1:expression>
	      <nonterminal>Chair</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperIsAssignedTo</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSecondaryTopic</selector>
	    <xns1:expression>
	      <nonterminal>ResearchTopic</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasMainTopic</selector>
	    <xns1:expression>
	      <nonterminal>ResearchTopic</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAuthor</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasStatus</selector>
	    <xns1:expression>
	      <nonterminal>PaperStatus</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasTitle</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasID</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAbstract</selector>
	    <xns1:expression>
	      <nonterminal>PaperAbstract</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isRatedBy</selector>
	    <xns1:expression>
	      <nonterminal>Review</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_written_by</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Abstract</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Title</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Students</selector>
	    <xns1:expression>
	      <nonterminal>Boolean</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Keywords</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasCo-author</selector>
	    <xns1:expression>
	      <nonterminal>Co-author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasBid</selector>
	    <xns1:expression>
	      <nonterminal>Bid</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasDecision</selector>
	    <xns1:expression>
	      <nonterminal>Decision</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>assignedTo</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSubjectArea</selector>
	    <xns1:expression>
	      <nonterminal>SubjectArea</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>readByReviewer</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperID</selector>
	    <xns1:expression>
	      <nonterminal>unsignedLong</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>title</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>acceptedBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>rejectedBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>readByMeta-Reviewer</selector>
	    <xns1:expression>
	      <nonterminal>Meta-Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Research_Topic</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>define</selector>
	<xns1:expression>
	  <nonterminal>Event</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Research_Topic</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>topicCoveredBy</selector>
	<xns1:expression>
	  <nonterminal>Thing</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Description</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Assistance</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Email_Template</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>define</selector>
	<xns1:expression>
	  <nonterminal>Event</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_participant</nonterminal>
    <xns1:expression>
      <nonterminal>Passive_conference_participant</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_participant</nonterminal>
    <xns1:expression>
      <nonterminal>Active_conference_participant</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Active_conference_participant</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>gives_presentations</selector>
	<xns1:expression>
	  <nonterminal>Presentation</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Passive_conference_participant</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Review_expertise</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>has_a_submitted_contribution</selector>
	    <xns1:expression>
	      <nonterminal>Submitted_contribution</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_an_expertise</selector>
	    <xns1:expression>
	      <nonterminal>EEnum</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Submitted_contribution</nonterminal>
    <xns1:expression>
      <nonterminal>Reviewed_contribution</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Submitted_contribution</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>has_a_review_expertise</selector>
	<xns1:expression>
	  <nonterminal>Review_expertise</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Regular_author</nonterminal>
    <xns1:expression>
      <nonterminal>Contribution_1th-author</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Regular_author</nonterminal>
    <xns1:expression>
      <nonterminal>Contribution_co-author</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Regular_author</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>Contribution_1th-author</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Contribution_co-author</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_contributor</nonterminal>
    <xns1:expression>
      <nonterminal>Regular_author</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_contributor</nonterminal>
    <xns1:expression>
      <nonterminal>Invited_speaker</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_contributor</nonterminal>
    <xns1:expression>
      <nonterminal>Active_conference_participant</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_contributor</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>Regular_author</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Invited_speaker</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Contribution_1th-author</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Contribution_co-author</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_contribution</nonterminal>
    <xns1:expression>
      <nonterminal>Poster</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_contribution</nonterminal>
    <xns1:expression>
      <nonterminal>Written_contribution</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_contribution</nonterminal>
    <xns1:expression>
      <nonterminal>Presentation</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_contribution</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>is_submitted_at</selector>
	<xns1:expression>
	  <nonterminal>Conference_volume</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Co-chair</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>was_a_committe_co-chair_of</selector>
	<xns1:expression>
	  <nonterminal>Committee</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Committee_member</nonterminal>
    <xns1:expression>
      <nonterminal>Co-chair</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Committee_member</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>was_a_member_of</selector>
	<xns1:expression>
	  <nonterminal>Committee</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Abstract</nonterminal>
    <xns1:expression>
      <nonterminal>Tutorial_Abstract</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Abstract</nonterminal>
    <xns1:expression>
      <nonterminal>Invited_Talk_Abstract</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Abstract</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>is_the_1th_part_of</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>part_of_article</selector>
	    <xns1:expression>
	      <nonterminal>article</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Extended_abstract</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Important_dates</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>is_an_abstract_submission_date</selector>
	    <xns1:expression>
	      <nonterminal>date</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_a_full_paper_submission_date</selector>
	    <xns1:expression>
	      <nonterminal>date</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_an_ending_date</selector>
	    <xns1:expression>
	      <nonterminal>date</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_a_date_of_acceptance_announcement</selector>
	    <xns1:expression>
	      <nonterminal>date</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_a_date_of_camera_ready_paper_submission</selector>
	    <xns1:expression>
	      <nonterminal>date</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_a_starting_date</selector>
	    <xns1:expression>
	      <nonterminal>date</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>belong_to_a_conference_volume</selector>
	    <xns1:expression>
	      <nonterminal>Conference_volume</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Invited_speaker</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_proceedings</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>has_an_ISBN</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_a_publisher</selector>
	    <xns1:expression>
	      <nonterminal>Publisher</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_a_volume</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Information_for_participants</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>has_authors</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_a_date_of_issue</selector>
	    <xns1:expression>
	      <nonterminal>date</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_document</nonterminal>
    <xns1:expression>
      <nonterminal>Conference_contribution</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_document</nonterminal>
    <xns1:expression>
      <nonterminal>Information_for_participants</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_document</nonterminal>
    <xns1:expression>
      <nonterminal>Call_for_paper</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_document</nonterminal>
    <xns1:expression>
      <nonterminal>Conference_announcement</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_document</nonterminal>
    <xns1:expression>
      <nonterminal>Call_for_participation</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_document</nonterminal>
    <xns1:expression>
      <nonterminal>Conference_www</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_document</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>has_authors</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_a_date_of_issue</selector>
	    <xns1:expression>
	      <nonterminal>date</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Regular_contribution</nonterminal>
    <xns1:expression>
      <nonterminal>Extended_abstract</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Poster</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>is_submitted_at</selector>
	<xns1:expression>
	  <nonterminal>Conference_volume</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Poster</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>writtenBy</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>dealsWith</selector>
	    <xns1:expression>
	      <nonterminal>Topic</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>remark</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>abstract</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>contactEmail</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasKeyword</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasTitle</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Written_contribution</nonterminal>
    <xns1:expression>
      <nonterminal>Submitted_contribution</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Written_contribution</nonterminal>
    <xns1:expression>
      <nonterminal>Regular_contribution</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Written_contribution</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>Submitted_contribution</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Regular_contribution</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_applicant</nonterminal>
    <xns1:expression>
      <nonterminal>Registeered_applicant</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Camera_ready_contribution</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Accepted_contribution</nonterminal>
    <xns1:expression>
      <nonterminal>Camera_ready_contribution</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Program_committee</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>was_a_program_committee_of</selector>
	<xns1:expression>
	  <nonterminal>Conference_volume</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Organizing_committee</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>was_an_organizing_committee_of</selector>
	<xns1:expression>
	  <nonterminal>Conference_volume</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Steering_committee</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>was_a_steering_committee_of</selector>
	<xns1:expression>
	  <nonterminal>Conference_volume</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_volume</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>has_parts</selector>
	    <xns1:expression>
	      <nonterminal>Conference_part</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_workshops</selector>
	    <xns1:expression>
	      <nonterminal>Workshop</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_tracks</selector>
	    <xns1:expression>
	      <nonterminal>Track</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_tutorials</selector>
	    <xns1:expression>
	      <nonterminal>Tutorial</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_a_commtitee</selector>
	    <xns1:expression>
	      <nonterminal>Committee</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_a_steering_committee</selector>
	    <xns1:expression>
	      <nonterminal>Steering_committee</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_an_organizing_committee</selector>
	    <xns1:expression>
	      <nonterminal>Organizing_committee</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_important_dates</selector>
	    <xns1:expression>
	      <nonterminal>Important_dates</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_contributions</selector>
	    <xns1:expression>
	      <nonterminal>Conference_contribution</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_a_location</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_a_program_committee</selector>
	    <xns1:expression>
	      <nonterminal>Program_committee</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Call_for_paper</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>has_authors</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_a_date_of_issue</selector>
	    <xns1:expression>
	      <nonterminal>date</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_announcement</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>has_authors</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_a_date_of_issue</selector>
	    <xns1:expression>
	      <nonterminal>date</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Invited_talk</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>is_given_by</selector>
	<xns1:expression>
	  <nonterminal>Active_conference_participant</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_part</nonterminal>
    <xns1:expression>
      <nonterminal>Track</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_part</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>has_a_track-workshop-tutorial_topic</selector>
	    <xns1:expression>
	      <nonterminal>Topic</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_part_of_conference_volumes</selector>
	    <xns1:expression>
	      <nonterminal>Conference_volume</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_a_track-workshop-tutorial_chair</selector>
	    <xns1:expression>
	      <nonterminal>Track-workshop_chair</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Rejected_contribution</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>has_a_review</selector>
	<xns1:expression>
	  <nonterminal>Review</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Reviewed_contribution</nonterminal>
    <xns1:expression>
      <nonterminal>Accepted_contribution</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Reviewed_contribution</nonterminal>
    <xns1:expression>
      <nonterminal>Rejected_contribution</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Reviewed_contribution</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>has_a_review</selector>
	<xns1:expression>
	  <nonterminal>Review</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Late_paid_applicant</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Paid_applicant</nonterminal>
    <xns1:expression>
      <nonterminal>Late_paid_applicant</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Paid_applicant</nonterminal>
    <xns1:expression>
      <nonterminal>Early_paid_applicant</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Paid_applicant</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>Late_paid_applicant</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Early_paid_applicant</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Early_paid_applicant</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Call_for_participation</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>has_authors</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_a_date_of_issue</selector>
	    <xns1:expression>
	      <nonterminal>date</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Publisher</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>issues</selector>
	<xns1:expression>
	  <nonterminal>Conference_proceedings</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Registeered_applicant</nonterminal>
    <xns1:expression>
      <nonterminal>Paid_applicant</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Track-workshop_chair</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>was_a_track-workshop_chair_of</selector>
	<xns1:expression>
	  <nonterminal>Conference_part</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_www</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>has_a_URL</selector>
	<xns1:expression>
	  <nonterminal>String</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_fees</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Review_preference</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>has_a_topic_or_a_submission_contribution</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_a_degree</selector>
	    <xns1:expression>
	      <nonterminal>Integer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Accepted_Paper</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>full_paper_size</selector>
	    <xns1:expression>
	      <nonterminal>Integer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isWrittenBy</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>isReviewedBy</selector>
		<xns1:expression>
		  <nonterminal>Person</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasReview</selector>
	    <xns1:expression>
	      <nonterminal>Review</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasReviewer</selector>
	    <xns1:expression>
	      <nonterminal>Possible_Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperIsSubmittedBy</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isRejectedBy</selector>
	    <xns1:expression>
	      <nonterminal>Chair</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isAcceptedBy</selector>
	    <xns1:expression>
	      <nonterminal>Chair</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperIsAssignedTo</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSecondaryTopic</selector>
	    <xns1:expression>
	      <nonterminal>ResearchTopic</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasMainTopic</selector>
	    <xns1:expression>
	      <nonterminal>ResearchTopic</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAuthor</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasStatus</selector>
	    <xns1:expression>
	      <nonterminal>PaperStatus</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasTitle</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasID</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAbstract</selector>
	    <xns1:expression>
	      <nonterminal>PaperAbstract</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isRatedBy</selector>
	    <xns1:expression>
	      <nonterminal>Review</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_written_by</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Abstract</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Title</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Students</selector>
	    <xns1:expression>
	      <nonterminal>Boolean</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Keywords</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasCo-author</selector>
	    <xns1:expression>
	      <nonterminal>Co-author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasBid</selector>
	    <xns1:expression>
	      <nonterminal>Bid</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasDecision</selector>
	    <xns1:expression>
	      <nonterminal>Decision</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>assignedTo</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSubjectArea</selector>
	    <xns1:expression>
	      <nonterminal>SubjectArea</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>readByReviewer</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperID</selector>
	    <xns1:expression>
	      <nonterminal>unsignedLong</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>title</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>acceptedBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>rejectedBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>readByMeta-Reviewer</selector>
	    <xns1:expression>
	      <nonterminal>Meta-Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Accepted_Paper</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>hasReview</selector>
	<xns1:expression>
	  <nonterminal>Review</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Rejected_Paper</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>full_paper_size</selector>
	    <xns1:expression>
	      <nonterminal>Integer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isWrittenBy</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>isReviewedBy</selector>
		<xns1:expression>
		  <nonterminal>Person</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasReview</selector>
	    <xns1:expression>
	      <nonterminal>Review</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasReviewer</selector>
	    <xns1:expression>
	      <nonterminal>Possible_Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperIsSubmittedBy</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isRejectedBy</selector>
	    <xns1:expression>
	      <nonterminal>Chair</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isAcceptedBy</selector>
	    <xns1:expression>
	      <nonterminal>Chair</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperIsAssignedTo</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSecondaryTopic</selector>
	    <xns1:expression>
	      <nonterminal>ResearchTopic</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasMainTopic</selector>
	    <xns1:expression>
	      <nonterminal>ResearchTopic</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAuthor</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasStatus</selector>
	    <xns1:expression>
	      <nonterminal>PaperStatus</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasTitle</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasID</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAbstract</selector>
	    <xns1:expression>
	      <nonterminal>PaperAbstract</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isRatedBy</selector>
	    <xns1:expression>
	      <nonterminal>Review</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_written_by</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Abstract</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Title</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Students</selector>
	    <xns1:expression>
	      <nonterminal>Boolean</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Keywords</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasCo-author</selector>
	    <xns1:expression>
	      <nonterminal>Co-author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasBid</selector>
	    <xns1:expression>
	      <nonterminal>Bid</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasDecision</selector>
	    <xns1:expression>
	      <nonterminal>Decision</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>assignedTo</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSubjectArea</selector>
	    <xns1:expression>
	      <nonterminal>SubjectArea</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>readByReviewer</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperID</selector>
	    <xns1:expression>
	      <nonterminal>unsignedLong</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>title</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>acceptedBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>rejectedBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>readByMeta-Reviewer</selector>
	    <xns1:expression>
	      <nonterminal>Meta-Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Rejected_Paper</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>hasReview</selector>
	<xns1:expression>
	  <nonterminal>Review</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Undecided_Paper</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>full_paper_size</selector>
	    <xns1:expression>
	      <nonterminal>Integer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isWrittenBy</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>isReviewedBy</selector>
		<xns1:expression>
		  <nonterminal>Person</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasReview</selector>
	    <xns1:expression>
	      <nonterminal>Review</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasReviewer</selector>
	    <xns1:expression>
	      <nonterminal>Possible_Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperIsSubmittedBy</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isRejectedBy</selector>
	    <xns1:expression>
	      <nonterminal>Chair</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isAcceptedBy</selector>
	    <xns1:expression>
	      <nonterminal>Chair</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperIsAssignedTo</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSecondaryTopic</selector>
	    <xns1:expression>
	      <nonterminal>ResearchTopic</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasMainTopic</selector>
	    <xns1:expression>
	      <nonterminal>ResearchTopic</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAuthor</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasStatus</selector>
	    <xns1:expression>
	      <nonterminal>PaperStatus</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasTitle</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasID</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAbstract</selector>
	    <xns1:expression>
	      <nonterminal>PaperAbstract</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isRatedBy</selector>
	    <xns1:expression>
	      <nonterminal>Review</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_written_by</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Abstract</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Title</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Students</selector>
	    <xns1:expression>
	      <nonterminal>Boolean</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Keywords</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasCo-author</selector>
	    <xns1:expression>
	      <nonterminal>Co-author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasBid</selector>
	    <xns1:expression>
	      <nonterminal>Bid</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasDecision</selector>
	    <xns1:expression>
	      <nonterminal>Decision</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>assignedTo</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSubjectArea</selector>
	    <xns1:expression>
	      <nonterminal>SubjectArea</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>readByReviewer</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperID</selector>
	    <xns1:expression>
	      <nonterminal>unsignedLong</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>title</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>acceptedBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>rejectedBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>readByMeta-Reviewer</selector>
	    <xns1:expression>
	      <nonterminal>Meta-Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Manual_Paper_Assignment</nonterminal>
    <xns1:expression>
      <plus>
	<xns1:expression>
	  <selectable>
	    <selector>manually_assign_paper</selector>
	    <xns1:expression>
	      <nonterminal>Program_Committee_member</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </plus>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Program_Committee_member</nonterminal>
    <xns1:expression>
      <nonterminal>Senior_Program_Committee_member</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Program_Committee_member</nonterminal>
    <xns1:expression>
      <nonterminal>Regular_Program_Committee_member</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Program_Committee_member</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>Senior_Program_Committee_member</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Regular_Program_Committee_member</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>paper_assignment</nonterminal>
    <xns1:expression>
      <nonterminal>Manual_Paper_Assignment</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>paper_assignment</nonterminal>
    <xns1:expression>
      <nonterminal>Automatic_Paper_Assignment</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>paper_assignment</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>assign_paper</selector>
	    <xns1:expression>
	      <nonterminal>Program_Committee_member</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_performed_by</selector>
	    <xns1:expression>
	      <nonterminal>human</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>intensity</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>start_date_of_camera-ready_submission</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>camera-ready_submission_date</nonterminal>
    <xns1:expression>
      <nonterminal>start_date_of_camera-ready_submission</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>camera-ready_submission_date</nonterminal>
    <xns1:expression>
      <nonterminal>end_date_of_camera-ready_submission</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>camera-ready_submission_date</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>start_date_of_camera-ready_submission</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>end_date_of_camera-ready_submission</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>date_of_notification</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>date</nonterminal>
    <xns1:expression>
      <nonterminal>camera-ready_submission_date</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>date</nonterminal>
    <xns1:expression>
      <nonterminal>date_of_notification</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>date</nonterminal>
    <xns1:expression>
      <nonterminal>abstract_submission_date</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>date</nonterminal>
    <xns1:expression>
      <nonterminal>date_of_conference</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>date</nonterminal>
    <xns1:expression>
      <nonterminal>full_paper_submission_date</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>date</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>camera-ready_submission_date</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>date_of_notification</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>abstract_submission_date</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>date_of_conference</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>full_paper_submission_date</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Contact_Person</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>is_author_of</selector>
	    <xns1:expression>
	      <nonterminal>article</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>performs_activity</selector>
	    <xns1:expression>
	      <nonterminal>Activity</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_employed_in</selector>
	    <xns1:expression>
	      <nonterminal>institute</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_topic_of_interest</selector>
	    <xns1:expression>
	      <nonterminal>Topic</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>supervises</selector>
	    <xns1:expression>
	      <nonterminal>Activity</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>e-mail</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>last_name</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>first_name</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>bidding_of_reviewer</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>is_performed_by</selector>
	<xns1:expression>
	  <nonterminal>human</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>URL</nonterminal>
    <xns1:expression>
      <nonterminal>Event_URL</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>URL</nonterminal>
    <xns1:expression>
      <nonterminal>Senior_Reviewer_URL</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>URL</nonterminal>
    <xns1:expression>
      <nonterminal>Chair_URL</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>URL</nonterminal>
    <xns1:expression>
      <nonterminal>Contact_Person_URL</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>URL</nonterminal>
    <xns1:expression>
      <nonterminal>Regular_Reviewer_URL</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>URL</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>Event_URL</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Senior_Reviewer_URL</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Chair_URL</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Contact_Person_URL</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Regular_Reviewer_URL</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>conference_setup</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>sets_member</selector>
	    <xns1:expression>
	      <nonterminal>human</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_made_by</selector>
	    <xns1:expression>
	      <nonterminal>human</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>includes_topic</selector>
	    <xns1:expression>
	      <nonterminal>Topic</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>sets_date</selector>
	    <xns1:expression>
	      <nonterminal>date</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>sets_URL</selector>
	    <xns1:expression>
	      <nonterminal>URL</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>human</nonterminal>
    <xns1:expression>
      <nonterminal>Program_Committee_member</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>human</nonterminal>
    <xns1:expression>
      <nonterminal>Contact_Person</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>human</nonterminal>
    <xns1:expression>
      <nonterminal>Program_Committee_Chair</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>human</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>is_author_of</selector>
	    <xns1:expression>
	      <nonterminal>article</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>performs_activity</selector>
	    <xns1:expression>
	      <nonterminal>Activity</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_employed_in</selector>
	    <xns1:expression>
	      <nonterminal>institute</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_topic_of_interest</selector>
	    <xns1:expression>
	      <nonterminal>Topic</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>supervises</selector>
	    <xns1:expression>
	      <nonterminal>Activity</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>e-mail</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>last_name</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>first_name</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>managing_of_conference_process</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>has_result</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>sent_by</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_followed_by</selector>
	    <xns1:expression>
	      <nonterminal>Activity</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_monitored_by</selector>
	    <xns1:expression>
	      <nonterminal>human</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_intensity</selector>
	    <xns1:expression>
	      <nonterminal>intensity</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_result</selector>
	    <xns1:expression>
	      <nonterminal>article</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_performed_by</selector>
	    <xns1:expression>
	      <nonterminal>human</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_supervised_by</selector>
	    <xns1:expression>
	      <nonterminal>human</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_held_before</selector>
	    <xns1:expression>
	      <nonterminal>Time</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_held_in</selector>
	    <xns1:expression>
	      <nonterminal>Thing</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_held_after</selector>
	    <xns1:expression>
	      <nonterminal>Time</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_dated_on</selector>
	    <xns1:expression>
	      <nonterminal>dateTime</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasTopic</selector>
	    <xns1:expression>
	      <nonterminal>Topic</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>expectedAttendance</selector>
	    <xns1:expression>
	      <nonterminal>Integer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isPartOf</selector>
	    <xns1:expression>
	      <nonterminal>Conference</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Program_Committee_Chair</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>is_author_of</selector>
	    <xns1:expression>
	      <nonterminal>article</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>performs_activity</selector>
	    <xns1:expression>
	      <nonterminal>Activity</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_employed_in</selector>
	    <xns1:expression>
	      <nonterminal>institute</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_topic_of_interest</selector>
	    <xns1:expression>
	      <nonterminal>Topic</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>supervises</selector>
	    <xns1:expression>
	      <nonterminal>Activity</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>e-mail</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>last_name</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>first_name</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>reviewing_proces</nonterminal>
    <xns1:expression>
      <nonterminal>lower_tier_reviewing_process</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>reviewing_proces</nonterminal>
    <xns1:expression>
      <nonterminal>upper_tier_reviewing_process</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>reviewing_proces</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>lower_tier_reviewing_process</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>upper_tier_reviewing_process</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>end_date_of_camera-ready_submission</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>abstract_submission_date</nonterminal>
    <xns1:expression>
      <nonterminal>end_date_of_abstract_submission</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>abstract_submission_date</nonterminal>
    <xns1:expression>
      <nonterminal>start_date_of_abstract_submission</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>abstract_submission_date</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>end_date_of_abstract_submission</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>start_date_of_abstract_submission</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>group_email</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>goes_through</selector>
	    <xns1:expression>
	      <nonterminal>Activity</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_sent_to</selector>
	    <xns1:expression>
	      <nonterminal>human</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_created_in</selector>
	    <xns1:expression>
	      <nonterminal>Activity</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>structure_created_by</selector>
	    <xns1:expression>
	      <nonterminal>human</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_author</selector>
	    <xns1:expression>
	      <nonterminal>human</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>gives_classification</selector>
	    <xns1:expression>
	      <nonterminal>classification</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>article_written_by</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_reviewer</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_abstract</selector>
	    <xns1:expression>
	      <nonterminal>Abstract</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Senior_Reviewer_URL</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>notification</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>has_result</selector>
	    <xns1:expression>
	      <nonterminal>article</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_performed_by</selector>
	    <xns1:expression>
	      <nonterminal>human</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>notification_email</nonterminal>
    <xns1:expression>
      <nonterminal>acceptance_notification_email</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>notification_email</nonterminal>
    <xns1:expression>
      <nonterminal>rejection_notification_email</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>notification_email</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>acceptance_notification_email</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>rejection_notification_email</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Chair_URL</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>abstract_of_paper</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>goes_through</selector>
	    <xns1:expression>
	      <nonterminal>Activity</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_sent_to</selector>
	    <xns1:expression>
	      <nonterminal>human</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_created_in</selector>
	    <xns1:expression>
	      <nonterminal>Activity</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>structure_created_by</selector>
	    <xns1:expression>
	      <nonterminal>human</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_author</selector>
	    <xns1:expression>
	      <nonterminal>human</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>gives_classification</selector>
	    <xns1:expression>
	      <nonterminal>classification</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>article_written_by</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_reviewer</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_abstract</selector>
	    <xns1:expression>
	      <nonterminal>Abstract</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>submission_process</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>is_performed_by</selector>
	<xns1:expression>
	  <nonterminal>human</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>lower_tier_reviewing_process</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>start_date_of_conference</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>date_of_conference</nonterminal>
    <xns1:expression>
      <nonterminal>start_date_of_conference</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>date_of_conference</nonterminal>
    <xns1:expression>
      <nonterminal>end_date_of_conference</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>date_of_conference</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>start_date_of_conference</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>end_date_of_conference</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Senior_Program_Committee_member</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>supervises</selector>
	<xns1:expression>
	  <nonterminal>Activity</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>end_date_of_abstract_submission</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>phase_of_conference</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Regular_Program_Committee_member</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>start_date_of_full_paper_submission</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>full_paper_submission_date</nonterminal>
    <xns1:expression>
      <nonterminal>start_date_of_full_paper_submission</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>full_paper_submission_date</nonterminal>
    <xns1:expression>
      <nonterminal>end_date_of_full_paper_submission</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>full_paper_submission_date</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>start_date_of_full_paper_submission</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>end_date_of_full_paper_submission</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>start_date_of_abstract_submission</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>end_date_of_conference</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>review_form</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>is_created_in</selector>
	<xns1:expression>
	  <nonterminal>Activity</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Automatic_Paper_Assignment</nonterminal>
    <xns1:expression>
      <plus>
	<xns1:expression>
	  <selectable>
	    <selector>automatically_assign_paper</selector>
	    <xns1:expression>
	      <nonterminal>Program_Committee_member</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </plus>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>institute</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>classification</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>summary_of_reviews</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>is_created_in</selector>
	<xns1:expression>
	  <nonterminal>Activity</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>upper_tier_reviewing_process</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>is_performed_by</selector>
	<xns1:expression>
	  <nonterminal>human</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>end_date_of_full_paper_submission</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>acceptance_notification_email</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>rejection_notification_email</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Contact_Person_URL</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Regular_Reviewer_URL</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Trip</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Banquet</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Reception</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Social_event</nonterminal>
    <xns1:expression>
      <nonterminal>Trip</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Social_event</nonterminal>
    <xns1:expression>
      <nonterminal>Banquet</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Social_event</nonterminal>
    <xns1:expression>
      <nonterminal>Reception</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Social_event</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>Trip</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Banquet</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Reception</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Contribution</nonterminal>
    <xns1:expression>
      <nonterminal>Poster</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Contribution</nonterminal>
    <xns1:expression>
      <nonterminal>Short_paper</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Contribution</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>writtenBy</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>dealsWith</selector>
	    <xns1:expression>
	      <nonterminal>Topic</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>remark</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>abstract</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>contactEmail</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasKeyword</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasTitle</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Company</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>isProviderOf</selector>
	<xns1:expression>
	  <nonterminal>Sponsorship</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Scholar</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>studyAt</selector>
	<xns1:expression>
	  <nonterminal>University</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Short_paper</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>writtenBy</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>dealsWith</selector>
	    <xns1:expression>
	      <nonterminal>Topic</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>remark</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>abstract</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>contactEmail</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasKeyword</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasTitle</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Reviewing_results_event</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>follows</selector>
	    <xns1:expression>
	      <nonterminal>Administrative_event</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>parallel_with</selector>
	    <xns1:expression>
	      <nonterminal>Administrative_event</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Administrative_event</nonterminal>
    <xns1:expression>
      <nonterminal>Reviewing_results_event</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Administrative_event</nonterminal>
    <xns1:expression>
      <nonterminal>Reviewing_event</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Administrative_event</nonterminal>
    <xns1:expression>
      <nonterminal>Registration_of_participants_event</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Administrative_event</nonterminal>
    <xns1:expression>
      <nonterminal>Submission_event</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Administrative_event</nonterminal>
    <xns1:expression>
      <nonterminal>Camera_Ready_event</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Administrative_event</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>follows</selector>
	    <xns1:expression>
	      <nonterminal>Administrative_event</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>parallel_with</selector>
	    <xns1:expression>
	      <nonterminal>Administrative_event</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Reviewing_event</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>follows</selector>
	    <xns1:expression>
	      <nonterminal>Administrative_event</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>parallel_with</selector>
	    <xns1:expression>
	      <nonterminal>Administrative_event</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Registration_of_participants_event</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>follows</selector>
	    <xns1:expression>
	      <nonterminal>Administrative_event</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>parallel_with</selector>
	    <xns1:expression>
	      <nonterminal>Administrative_event</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Submission_event</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>follows</selector>
	    <xns1:expression>
	      <nonterminal>Administrative_event</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>parallel_with</selector>
	    <xns1:expression>
	      <nonterminal>Administrative_event</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Camera_Ready_event</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>follows</selector>
	    <xns1:expression>
	      <nonterminal>Administrative_event</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>parallel_with</selector>
	    <xns1:expression>
	      <nonterminal>Administrative_event</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Tutorial</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>hasTopic</selector>
	    <xns1:expression>
	      <nonterminal>Topic</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAdministrativeEvent</selector>
	    <xns1:expression>
	      <nonterminal>Administrative_event</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Working_event</nonterminal>
    <xns1:expression>
      <nonterminal>Tutorial</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Working_event</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>hasTopic</selector>
	    <xns1:expression>
	      <nonterminal>Topic</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAdministrativeEvent</selector>
	    <xns1:expression>
	      <nonterminal>Administrative_event</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Member</nonterminal>
    <xns1:expression>
      <nonterminal>Program_chair</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Member</nonterminal>
    <xns1:expression>
      <nonterminal>Advocate</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Member</nonterminal>
    <xns1:expression>
      <nonterminal>Reviewer</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Member</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>Web_address</selector>
	<xns1:expression>
	  <nonterminal>String</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Participant</nonterminal>
    <xns1:expression>
      <nonterminal>Student</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Participant</nonterminal>
    <xns1:expression>
      <nonterminal>Regular</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Participant</nonterminal>
    <xns1:expression>
      <nonterminal>Member</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Participant</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>earlyRegistration</selector>
	<xns1:expression>
	  <nonterminal>Boolean</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Member_PC</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>expertOn</selector>
	    <xns1:expression>
	      <nonterminal>Topic</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>reviewes</selector>
	    <xns1:expression>
	      <nonterminal>Contribution</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Chair_PC</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>inverse_of_add</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>execute</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>get</selector>
	    <xns1:expression>
	      <nonterminal>Inforamtion</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>use</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>register</selector>
	    <xns1:expression>
	      <nonterminal>Account</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>modify</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>take_part_in</selector>
	    <xns1:expression>
	      <nonterminal>Event</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>remove</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>add</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>added_by</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasConflictOfInterest</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>email</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>contributes</selector>
	    <xns1:expression>
	      <nonterminal>Conference_document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_an_email</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_the_first_name</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_gender</selector>
	    <xns1:expression>
	      <nonterminal>EEnum</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_the_last_name</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>authorOf</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>prepare</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>occupy</selector>
		<xns1:expression>
		  <nonterminal>Presenter_city</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>is_present_in</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>write</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>obtain</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>send</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>speak_in</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>pay</selector>
	    <xns1:expression>
	      <nonterminal>Money</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>sign</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_present</selector>
	    <xns1:expression>
	      <nonterminal>Time</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>give</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>need</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasMail</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>worksForCompany</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAffiliation</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFirstName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasLastName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>employedBy</selector>
	    <xns1:expression>
	      <nonterminal>Organization</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasHomePage</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSurname</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFax</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFirstName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasPhone</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasEmail</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>attendeeAt</selector>
	    <xns1:expression>
	      <nonterminal>ConferenceEvent</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isMemberOf</selector>
	    <xns1:expression>
	      <nonterminal>Conference</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFirstName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasBiography</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasLastName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Student</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>earlyRegistration</selector>
	<xns1:expression>
	  <nonterminal>Boolean</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Student</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>inverse_of_add</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>execute</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>get</selector>
	    <xns1:expression>
	      <nonterminal>Inforamtion</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>use</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>register</selector>
	    <xns1:expression>
	      <nonterminal>Account</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>modify</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>take_part_in</selector>
	    <xns1:expression>
	      <nonterminal>Event</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>remove</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>add</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>added_by</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasConflictOfInterest</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>email</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>contributes</selector>
	    <xns1:expression>
	      <nonterminal>Conference_document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_an_email</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_the_first_name</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_gender</selector>
	    <xns1:expression>
	      <nonterminal>EEnum</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_the_last_name</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>authorOf</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>prepare</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>occupy</selector>
		<xns1:expression>
		  <nonterminal>Presenter_city</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>is_present_in</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>write</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>obtain</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>send</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>speak_in</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>pay</selector>
	    <xns1:expression>
	      <nonterminal>Money</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>sign</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_present</selector>
	    <xns1:expression>
	      <nonterminal>Time</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>give</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>need</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasMail</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>worksForCompany</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAffiliation</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFirstName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasLastName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>employedBy</selector>
	    <xns1:expression>
	      <nonterminal>Organization</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasHomePage</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSurname</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFax</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFirstName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasPhone</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasEmail</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>attendeeAt</selector>
	    <xns1:expression>
	      <nonterminal>ConferenceEvent</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isMemberOf</selector>
	    <xns1:expression>
	      <nonterminal>Conference</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFirstName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasBiography</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasLastName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Science_Worker</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>inverse_of_add</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>execute</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>get</selector>
	    <xns1:expression>
	      <nonterminal>Inforamtion</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>use</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>register</selector>
	    <xns1:expression>
	      <nonterminal>Account</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>modify</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>take_part_in</selector>
	    <xns1:expression>
	      <nonterminal>Event</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>remove</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>add</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>added_by</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasConflictOfInterest</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>email</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>contributes</selector>
	    <xns1:expression>
	      <nonterminal>Conference_document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_an_email</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_the_first_name</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_gender</selector>
	    <xns1:expression>
	      <nonterminal>EEnum</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_the_last_name</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>authorOf</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>prepare</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>occupy</selector>
		<xns1:expression>
		  <nonterminal>Presenter_city</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>is_present_in</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>write</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>obtain</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>send</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>speak_in</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>pay</selector>
	    <xns1:expression>
	      <nonterminal>Money</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>sign</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_present</selector>
	    <xns1:expression>
	      <nonterminal>Time</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>give</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>need</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasMail</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>worksForCompany</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAffiliation</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFirstName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasLastName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>employedBy</selector>
	    <xns1:expression>
	      <nonterminal>Organization</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasHomePage</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSurname</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFax</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFirstName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasPhone</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasEmail</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>attendeeAt</selector>
	    <xns1:expression>
	      <nonterminal>ConferenceEvent</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isMemberOf</selector>
	    <xns1:expression>
	      <nonterminal>Conference</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFirstName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasBiography</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasLastName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Assistant</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>inverse_of_add</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>execute</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>get</selector>
	    <xns1:expression>
	      <nonterminal>Inforamtion</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>use</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>register</selector>
	    <xns1:expression>
	      <nonterminal>Account</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>modify</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>take_part_in</selector>
	    <xns1:expression>
	      <nonterminal>Event</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>remove</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>add</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>added_by</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasConflictOfInterest</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>email</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>contributes</selector>
	    <xns1:expression>
	      <nonterminal>Conference_document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_an_email</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_the_first_name</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_gender</selector>
	    <xns1:expression>
	      <nonterminal>EEnum</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_the_last_name</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>authorOf</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>prepare</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>occupy</selector>
		<xns1:expression>
		  <nonterminal>Presenter_city</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>is_present_in</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>write</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>obtain</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>send</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>speak_in</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>pay</selector>
	    <xns1:expression>
	      <nonterminal>Money</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>sign</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_present</selector>
	    <xns1:expression>
	      <nonterminal>Time</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>give</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>need</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasMail</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>worksForCompany</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAffiliation</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFirstName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasLastName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>employedBy</selector>
	    <xns1:expression>
	      <nonterminal>Organization</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasHomePage</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSurname</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFax</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFirstName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasPhone</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasEmail</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>attendeeAt</selector>
	    <xns1:expression>
	      <nonterminal>ConferenceEvent</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isMemberOf</selector>
	    <xns1:expression>
	      <nonterminal>Conference</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFirstName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasBiography</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasLastName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Volunteer</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>inverse_of_add</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>execute</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>get</selector>
	    <xns1:expression>
	      <nonterminal>Inforamtion</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>use</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>register</selector>
	    <xns1:expression>
	      <nonterminal>Account</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>modify</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>take_part_in</selector>
	    <xns1:expression>
	      <nonterminal>Event</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>remove</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>add</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>added_by</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasConflictOfInterest</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>email</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>contributes</selector>
	    <xns1:expression>
	      <nonterminal>Conference_document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_an_email</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_the_first_name</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_gender</selector>
	    <xns1:expression>
	      <nonterminal>EEnum</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_the_last_name</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>authorOf</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>prepare</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>occupy</selector>
		<xns1:expression>
		  <nonterminal>Presenter_city</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>is_present_in</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>write</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>obtain</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>send</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>speak_in</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>pay</selector>
	    <xns1:expression>
	      <nonterminal>Money</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>sign</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_present</selector>
	    <xns1:expression>
	      <nonterminal>Time</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>give</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>need</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasMail</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>worksForCompany</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAffiliation</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFirstName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasLastName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>employedBy</selector>
	    <xns1:expression>
	      <nonterminal>Organization</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasHomePage</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSurname</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFax</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFirstName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasPhone</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasEmail</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>attendeeAt</selector>
	    <xns1:expression>
	      <nonterminal>ConferenceEvent</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isMemberOf</selector>
	    <xns1:expression>
	      <nonterminal>Conference</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFirstName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasBiography</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasLastName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Regular</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>earlyRegistration</selector>
	<xns1:expression>
	  <nonterminal>Boolean</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>pc_meeting</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>conists_of</selector>
	    <xns1:expression>
	      <nonterminal>Event_Tracks</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>confirmed_by</selector>
	    <xns1:expression>
	      <nonterminal>Approval_Email</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>defined_by</selector>
	    <xns1:expression>
	      <nonterminal>Event_Setup</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>approved_by</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>starts_on</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>ends_on</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_startdate</selector>
	    <xns1:expression>
	      <nonterminal>dateTime</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_enddate</selector>
	    <xns1:expression>
	      <nonterminal>dateTime</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>eventOnList</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>partOfEvent</selector>
	    <xns1:expression>
	      <nonterminal>Event</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasEvent</selector>
	    <xns1:expression>
	      <nonterminal>Event</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>organisedBy</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>heldIn</selector>
	    <xns1:expression>
	      <nonterminal>Location</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>session</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>conists_of</selector>
	    <xns1:expression>
	      <nonterminal>Event_Tracks</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>confirmed_by</selector>
	    <xns1:expression>
	      <nonterminal>Approval_Email</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>defined_by</selector>
	    <xns1:expression>
	      <nonterminal>Event_Setup</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>approved_by</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>starts_on</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>ends_on</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_startdate</selector>
	    <xns1:expression>
	      <nonterminal>dateTime</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_enddate</selector>
	    <xns1:expression>
	      <nonterminal>dateTime</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>eventOnList</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>partOfEvent</selector>
	    <xns1:expression>
	      <nonterminal>Event</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasEvent</selector>
	    <xns1:expression>
	      <nonterminal>Event</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>organisedBy</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>heldIn</selector>
	    <xns1:expression>
	      <nonterminal>Location</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>article</nonterminal>
    <xns1:expression>
      <nonterminal>group_email</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>article</nonterminal>
    <xns1:expression>
      <nonterminal>notification_email</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>article</nonterminal>
    <xns1:expression>
      <nonterminal>abstract_of_paper</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>article</nonterminal>
    <xns1:expression>
      <nonterminal>review_form</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>article</nonterminal>
    <xns1:expression>
      <nonterminal>summary_of_reviews</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>article</nonterminal>
    <xns1:expression>
      <nonterminal>Review</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>article</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>goes_through</selector>
	    <xns1:expression>
	      <nonterminal>Activity</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_sent_to</selector>
	    <xns1:expression>
	      <nonterminal>human</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_created_in</selector>
	    <xns1:expression>
	      <nonterminal>Activity</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>structure_created_by</selector>
	    <xns1:expression>
	      <nonterminal>human</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_author</selector>
	    <xns1:expression>
	      <nonterminal>human</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>gives_classification</selector>
	    <xns1:expression>
	      <nonterminal>classification</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>article_written_by</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_reviewer</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_abstract</selector>
	    <xns1:expression>
	      <nonterminal>Abstract</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>participant</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>submits_to_conference</selector>
	<xns1:expression>
	  <nonterminal>Conference</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>program</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>program_created_by</selector>
	    <xns1:expression>
	      <nonterminal>Chair</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_session</selector>
	    <xns1:expression>
	      <nonterminal>session</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>SlideSet</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>recieved_by</selector>
	    <xns1:expression>
	      <nonterminal>User</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>used_by</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>submited__by</selector>
	    <xns1:expression>
	      <nonterminal>User</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>relatesTo</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>writtenBy</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasUpdatedVersion</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>updatedVersionOf</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Programme</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>belongsToEvent</selector>
	<xns1:expression>
	  <nonterminal>ConferenceEvent</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>MealMenu</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>isMenuOf</selector>
	<xns1:expression>
	  <nonterminal>MealEvent</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Topic</nonterminal>
    <xns1:expression>
      <nonterminal>ParallelAndDistributedComputingTopic</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Topic</nonterminal>
    <xns1:expression>
      <nonterminal>WirelessCommunicationsTopic</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Topic</nonterminal>
    <xns1:expression>
      <nonterminal>OperatingTopicsystems</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Topic</nonterminal>
    <xns1:expression>
      <nonterminal>ComputerNetworksTopic</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Topic</nonterminal>
    <xns1:expression>
      <nonterminal>SatelliteAndSpaceCommunicationsTopic</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Topic</nonterminal>
    <xns1:expression>
      <nonterminal>CADTopic</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Topic</nonterminal>
    <xns1:expression>
      <nonterminal>MultimediaTopic</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Topic</nonterminal>
    <xns1:expression>
      <nonterminal>CommunicationsTopic</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Topic</nonterminal>
    <xns1:expression>
      <nonterminal>PowerlineTransmissionTopic</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Topic</nonterminal>
    <xns1:expression>
      <nonterminal>AntennasTopic</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Topic</nonterminal>
    <xns1:expression>
      <nonterminal>PerformanceTopic</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Topic</nonterminal>
    <xns1:expression>
      <nonterminal>SignalProcessingTopic</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Topic</nonterminal>
    <xns1:expression>
      <nonterminal>MicroelectronicsTopic</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Topic</nonterminal>
    <xns1:expression>
      <nonterminal>TestOnlyTopic</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Topic</nonterminal>
    <xns1:expression>
      <nonterminal>RadioCommunicationsTopic</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Topic</nonterminal>
    <xns1:expression>
      <nonterminal>ComputerArchitectureTopic</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Topic</nonterminal>
    <xns1:expression>
      <nonterminal>MedicineTopic</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Topic</nonterminal>
    <xns1:expression>
      <nonterminal>SecurityTopic</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Topic</nonterminal>
    <xns1:expression>
      <nonterminal>MobileComputingTopic</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Topic</nonterminal>
    <xns1:expression>
      <nonterminal>CryptographyTopic</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Topic</nonterminal>
    <xns1:expression>
      <nonterminal>CommunicationTheoryTopic</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Topic</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>isIncluded</selector>
	    <xns1:expression>
	      <nonterminal>Activity</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>belongs_to_a_review_reference</selector>
	    <xns1:expression>
	      <nonterminal>Review_preference</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_a_topis_of_conference_parts</selector>
	    <xns1:expression>
	      <nonterminal>Conference_part</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isTopicOf</selector>
	    <xns1:expression>
	      <nonterminal>Working_event</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ConferenceEvent</nonterminal>
    <xns1:expression>
      <nonterminal>NonAcademicEvent</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ConferenceEvent</nonterminal>
    <xns1:expression>
      <nonterminal>AcademicEvent</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ConferenceEvent</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>hasAttendee</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasLocation</selector>
	    <xns1:expression>
	      <nonterminal>Place</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasProgramme</selector>
	    <xns1:expression>
	      <nonterminal>Programme</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasEndDateTime</selector>
	    <xns1:expression>
	      <nonterminal>dateTime</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasStartDateTime</selector>
	    <xns1:expression>
	      <nonterminal>dateTime</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Call</nonterminal>
    <xns1:expression>
      <nonterminal>CallForPapers</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Call</nonterminal>
    <xns1:expression>
      <nonterminal>CallForReviews</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Call</nonterminal>
    <xns1:expression>
      <nonterminal>CallForManuscripts</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Call</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>forEvent</selector>
	    <xns1:expression>
	      <nonterminal>AcademicEvent</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>isInitiatedBy</selector>
		<xns1:expression>
		  <nonterminal>Person</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSubmissionInstructions</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSubmissionDeadline</selector>
	    <xns1:expression>
	      <nonterminal>dateTime</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ReviewRating</nonterminal>
    <xns1:expression>
      <nonterminal>WeekRejectRating</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ReviewRating</nonterminal>
    <xns1:expression>
      <nonterminal>AcceptRating</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ReviewRating</nonterminal>
    <xns1:expression>
      <nonterminal>AccpetIfRoomRating</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ReviewRating</nonterminal>
    <xns1:expression>
      <nonterminal>RejectRating</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ReviewRating</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>WeekRejectRating</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>AcceptRating</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>AccpetIfRoomRating</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>RejectRating</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Organization</nonterminal>
    <xns1:expression>
      <nonterminal>Company</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Organization</nonterminal>
    <xns1:expression>
      <nonterminal>AcademiaOrganization</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Organization</nonterminal>
    <xns1:expression>
      <nonterminal>IndustryOrganization</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Organization</nonterminal>
    <xns1:expression>
      <nonterminal>NGO</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Organization</nonterminal>
    <xns1:expression>
      <nonterminal>GovernmentOrganization</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Organization</nonterminal>
    <xns1:expression>
      <nonterminal>University</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Organization</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>isProviderOf</selector>
	<xns1:expression>
	  <nonterminal>Sponsorship</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ReviewForm</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>PersonalHistory</nonterminal>
    <xns1:expression>
      <nonterminal>PersonalPublicationHistory</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>PersonalHistory</nonterminal>
    <xns1:expression>
      <nonterminal>PersonalReviewHistory</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>PersonalHistory</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>PersonalPublicationHistory</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>PersonalReviewHistory</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Sponsorship</nonterminal>
    <xns1:expression>
      <nonterminal>TravelGrant</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Sponsorship</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>providedBy</selector>
	    <xns1:expression>
	      <nonterminal>Organization</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasCostCurrency</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasCostAmount</selector>
	    <xns1:expression>
	      <nonterminal>Integer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Person</nonterminal>
    <xns1:expression>
      <nonterminal>ConferenceMember</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Person</nonterminal>
    <xns1:expression>
      <nonterminal>ExternalReviewer</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Person</nonterminal>
    <xns1:expression>
      <nonterminal>User</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Person</nonterminal>
    <xns1:expression>
      <nonterminal>Conference_participant</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Person</nonterminal>
    <xns1:expression>
      <nonterminal>Conference_contributor</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Person</nonterminal>
    <xns1:expression>
      <nonterminal>Committee_member</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Person</nonterminal>
    <xns1:expression>
      <nonterminal>Conference_applicant</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Person</nonterminal>
    <xns1:expression>
      <nonterminal>Track-workshop_chair</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Person</nonterminal>
    <xns1:expression>
      <nonterminal>Scholar</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Person</nonterminal>
    <xns1:expression>
      <nonterminal>Participant</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Person</nonterminal>
    <xns1:expression>
      <nonterminal>Member_PC</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Person</nonterminal>
    <xns1:expression>
      <nonterminal>Chair_PC</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Person</nonterminal>
    <xns1:expression>
      <nonterminal>Science_Worker</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Person</nonterminal>
    <xns1:expression>
      <nonterminal>Assistant</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Person</nonterminal>
    <xns1:expression>
      <nonterminal>Volunteer</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Person</nonterminal>
    <xns1:expression>
      <nonterminal>participant</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Person</nonterminal>
    <xns1:expression>
      <nonterminal>ConferenceChair</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Person</nonterminal>
    <xns1:expression>
      <nonterminal>Attendee</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Person</nonterminal>
    <xns1:expression>
      <nonterminal>SessionChair</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Person</nonterminal>
    <xns1:expression>
      <nonterminal>TPCMember</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Person</nonterminal>
    <xns1:expression>
      <nonterminal>Paper_Author</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Person</nonterminal>
    <xns1:expression>
      <nonterminal>Conference_Participant</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Person</nonterminal>
    <xns1:expression>
      <nonterminal>Agency_Staff_Member</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Person</nonterminal>
    <xns1:expression>
      <nonterminal>Possible_Reviewer</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Person</nonterminal>
    <xns1:expression>
      <nonterminal>Student</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Person</nonterminal>
    <xns1:expression>
      <nonterminal>Delegate</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Person</nonterminal>
    <xns1:expression>
      <nonterminal>Sponsor</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Person</nonterminal>
    <xns1:expression>
      <nonterminal>OutsideReferee</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Person</nonterminal>
    <xns1:expression>
      <nonterminal>ConferenceAttendant</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Person</nonterminal>
    <xns1:expression>
      <nonterminal>Chairman</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Person</nonterminal>
    <xns1:expression>
      <nonterminal>Organizer</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Person</nonterminal>
    <xns1:expression>
      <nonterminal>ProgramCommitteeMember</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Person</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>inverse_of_add</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>execute</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>get</selector>
	    <xns1:expression>
	      <nonterminal>Inforamtion</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>use</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>register</selector>
	    <xns1:expression>
	      <nonterminal>Account</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>modify</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>take_part_in</selector>
	    <xns1:expression>
	      <nonterminal>Event</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>remove</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>add</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>added_by</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasConflictOfInterest</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>email</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>contributes</selector>
	    <xns1:expression>
	      <nonterminal>Conference_document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_an_email</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_the_first_name</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_gender</selector>
	    <xns1:expression>
	      <nonterminal>EEnum</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_the_last_name</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>authorOf</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>prepare</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>occupy</selector>
		<xns1:expression>
		  <nonterminal>Presenter_city</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>is_present_in</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>write</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>obtain</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>send</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>speak_in</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>pay</selector>
	    <xns1:expression>
	      <nonterminal>Money</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>sign</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_present</selector>
	    <xns1:expression>
	      <nonterminal>Time</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>give</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>need</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasMail</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>worksForCompany</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAffiliation</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFirstName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasLastName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>employedBy</selector>
	    <xns1:expression>
	      <nonterminal>Organization</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasHomePage</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSurname</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFax</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFirstName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasPhone</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasEmail</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>attendeeAt</selector>
	    <xns1:expression>
	      <nonterminal>ConferenceEvent</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isMemberOf</selector>
	    <xns1:expression>
	      <nonterminal>Conference</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFirstName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasBiography</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasLastName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Country</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ConferenceSession</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ContactInformation</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>hasCity</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasStreet</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasPostalCode</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasPhone</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>WeekRejectRating</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>AcceptRating</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>AccpetIfRoomRating</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>RejectRating</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>MealEvent</nonterminal>
    <xns1:expression>
      <nonterminal>ConferenceDinner</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>MealEvent</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>hasMenu</selector>
	<xns1:expression>
	  <nonterminal>MealMenu</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>NonAcademicEvent</nonterminal>
    <xns1:expression>
      <nonterminal>MealEvent</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>NonAcademicEvent</nonterminal>
    <xns1:expression>
      <nonterminal>BreakEvent</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>NonAcademicEvent</nonterminal>
    <xns1:expression>
      <nonterminal>SocialEvent</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>NonAcademicEvent</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>MealEvent</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>BreakEvent</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>SocialEvent</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>BreakEvent</nonterminal>
    <xns1:expression>
      <nonterminal>CoffeeBreak</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>BreakEvent</nonterminal>
    <xns1:expression>
      <nonterminal>FreeTimeBreak</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>BreakEvent</nonterminal>
    <xns1:expression>
      <nonterminal>MealBreak</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>BreakEvent</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>CoffeeBreak</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>FreeTimeBreak</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>MealBreak</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ParallelAndDistributedComputingTopic</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>isIncluded</selector>
	    <xns1:expression>
	      <nonterminal>Activity</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>belongs_to_a_review_reference</selector>
	    <xns1:expression>
	      <nonterminal>Review_preference</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_a_topis_of_conference_parts</selector>
	    <xns1:expression>
	      <nonterminal>Conference_part</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isTopicOf</selector>
	    <xns1:expression>
	      <nonterminal>Working_event</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>WirelessCommunicationsTopic</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>isIncluded</selector>
	    <xns1:expression>
	      <nonterminal>Activity</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>belongs_to_a_review_reference</selector>
	    <xns1:expression>
	      <nonterminal>Review_preference</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_a_topis_of_conference_parts</selector>
	    <xns1:expression>
	      <nonterminal>Conference_part</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isTopicOf</selector>
	    <xns1:expression>
	      <nonterminal>Working_event</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>OperatingTopicsystems</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>isIncluded</selector>
	    <xns1:expression>
	      <nonterminal>Activity</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>belongs_to_a_review_reference</selector>
	    <xns1:expression>
	      <nonterminal>Review_preference</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_a_topis_of_conference_parts</selector>
	    <xns1:expression>
	      <nonterminal>Conference_part</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isTopicOf</selector>
	    <xns1:expression>
	      <nonterminal>Working_event</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ComputerNetworksTopic</nonterminal>
    <xns1:expression>
      <nonterminal>ComputerNetworksEnterpriseTopic</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ComputerNetworksTopic</nonterminal>
    <xns1:expression>
      <nonterminal>ComputerNetworksSwitchingTopic</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ComputerNetworksTopic</nonterminal>
    <xns1:expression>
      <nonterminal>ComputerNetworksSensorTopic</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ComputerNetworksTopic</nonterminal>
    <xns1:expression>
      <nonterminal>ComputerNetworksSecurityTopic</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ComputerNetworksTopic</nonterminal>
    <xns1:expression>
      <nonterminal>ComputerNetworksOpticalTopic</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ComputerNetworksTopic</nonterminal>
    <xns1:expression>
      <nonterminal>ComputerNetworksMeasurementsTopic</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ComputerNetworksTopic</nonterminal>
    <xns1:expression>
      <nonterminal>ComputerNetworksManagementTopic</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ComputerNetworksTopic</nonterminal>
    <xns1:expression>
      <nonterminal>ComputerNetworksAapplicationsTopic</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ComputerNetworksTopic</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>ComputerNetworksEnterpriseTopic</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>ComputerNetworksSwitchingTopic</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>ComputerNetworksSensorTopic</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>ComputerNetworksSecurityTopic</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>ComputerNetworksOpticalTopic</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>ComputerNetworksMeasurementsTopic</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>ComputerNetworksManagementTopic</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>ComputerNetworksAapplicationsTopic</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>SatelliteAndSpaceCommunicationsTopic</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>isIncluded</selector>
	    <xns1:expression>
	      <nonterminal>Activity</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>belongs_to_a_review_reference</selector>
	    <xns1:expression>
	      <nonterminal>Review_preference</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_a_topis_of_conference_parts</selector>
	    <xns1:expression>
	      <nonterminal>Conference_part</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isTopicOf</selector>
	    <xns1:expression>
	      <nonterminal>Working_event</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>CADTopic</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>isIncluded</selector>
	    <xns1:expression>
	      <nonterminal>Activity</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>belongs_to_a_review_reference</selector>
	    <xns1:expression>
	      <nonterminal>Review_preference</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_a_topis_of_conference_parts</selector>
	    <xns1:expression>
	      <nonterminal>Conference_part</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isTopicOf</selector>
	    <xns1:expression>
	      <nonterminal>Working_event</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>MultimediaTopic</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>isIncluded</selector>
	    <xns1:expression>
	      <nonterminal>Activity</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>belongs_to_a_review_reference</selector>
	    <xns1:expression>
	      <nonterminal>Review_preference</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_a_topis_of_conference_parts</selector>
	    <xns1:expression>
	      <nonterminal>Conference_part</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isTopicOf</selector>
	    <xns1:expression>
	      <nonterminal>Working_event</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>CommunicationsTopic</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>isIncluded</selector>
	    <xns1:expression>
	      <nonterminal>Activity</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>belongs_to_a_review_reference</selector>
	    <xns1:expression>
	      <nonterminal>Review_preference</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_a_topis_of_conference_parts</selector>
	    <xns1:expression>
	      <nonterminal>Conference_part</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isTopicOf</selector>
	    <xns1:expression>
	      <nonterminal>Working_event</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>PowerlineTransmissionTopic</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>isIncluded</selector>
	    <xns1:expression>
	      <nonterminal>Activity</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>belongs_to_a_review_reference</selector>
	    <xns1:expression>
	      <nonterminal>Review_preference</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_a_topis_of_conference_parts</selector>
	    <xns1:expression>
	      <nonterminal>Conference_part</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isTopicOf</selector>
	    <xns1:expression>
	      <nonterminal>Working_event</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>AntennasTopic</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>isIncluded</selector>
	    <xns1:expression>
	      <nonterminal>Activity</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>belongs_to_a_review_reference</selector>
	    <xns1:expression>
	      <nonterminal>Review_preference</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_a_topis_of_conference_parts</selector>
	    <xns1:expression>
	      <nonterminal>Conference_part</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isTopicOf</selector>
	    <xns1:expression>
	      <nonterminal>Working_event</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>PerformanceTopic</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>isIncluded</selector>
	    <xns1:expression>
	      <nonterminal>Activity</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>belongs_to_a_review_reference</selector>
	    <xns1:expression>
	      <nonterminal>Review_preference</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_a_topis_of_conference_parts</selector>
	    <xns1:expression>
	      <nonterminal>Conference_part</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isTopicOf</selector>
	    <xns1:expression>
	      <nonterminal>Working_event</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>SignalProcessingTopic</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>isIncluded</selector>
	    <xns1:expression>
	      <nonterminal>Activity</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>belongs_to_a_review_reference</selector>
	    <xns1:expression>
	      <nonterminal>Review_preference</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_a_topis_of_conference_parts</selector>
	    <xns1:expression>
	      <nonterminal>Conference_part</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isTopicOf</selector>
	    <xns1:expression>
	      <nonterminal>Working_event</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>MicroelectronicsTopic</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>isIncluded</selector>
	    <xns1:expression>
	      <nonterminal>Activity</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>belongs_to_a_review_reference</selector>
	    <xns1:expression>
	      <nonterminal>Review_preference</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_a_topis_of_conference_parts</selector>
	    <xns1:expression>
	      <nonterminal>Conference_part</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isTopicOf</selector>
	    <xns1:expression>
	      <nonterminal>Working_event</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>TestOnlyTopic</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>isIncluded</selector>
	    <xns1:expression>
	      <nonterminal>Activity</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>belongs_to_a_review_reference</selector>
	    <xns1:expression>
	      <nonterminal>Review_preference</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_a_topis_of_conference_parts</selector>
	    <xns1:expression>
	      <nonterminal>Conference_part</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isTopicOf</selector>
	    <xns1:expression>
	      <nonterminal>Working_event</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>RadioCommunicationsTopic</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>isIncluded</selector>
	    <xns1:expression>
	      <nonterminal>Activity</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>belongs_to_a_review_reference</selector>
	    <xns1:expression>
	      <nonterminal>Review_preference</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_a_topis_of_conference_parts</selector>
	    <xns1:expression>
	      <nonterminal>Conference_part</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isTopicOf</selector>
	    <xns1:expression>
	      <nonterminal>Working_event</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ComputerArchitectureTopic</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>isIncluded</selector>
	    <xns1:expression>
	      <nonterminal>Activity</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>belongs_to_a_review_reference</selector>
	    <xns1:expression>
	      <nonterminal>Review_preference</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_a_topis_of_conference_parts</selector>
	    <xns1:expression>
	      <nonterminal>Conference_part</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isTopicOf</selector>
	    <xns1:expression>
	      <nonterminal>Working_event</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>MedicineTopic</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>isIncluded</selector>
	    <xns1:expression>
	      <nonterminal>Activity</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>belongs_to_a_review_reference</selector>
	    <xns1:expression>
	      <nonterminal>Review_preference</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_a_topis_of_conference_parts</selector>
	    <xns1:expression>
	      <nonterminal>Conference_part</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isTopicOf</selector>
	    <xns1:expression>
	      <nonterminal>Working_event</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>SecurityTopic</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>isIncluded</selector>
	    <xns1:expression>
	      <nonterminal>Activity</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>belongs_to_a_review_reference</selector>
	    <xns1:expression>
	      <nonterminal>Review_preference</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_a_topis_of_conference_parts</selector>
	    <xns1:expression>
	      <nonterminal>Conference_part</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isTopicOf</selector>
	    <xns1:expression>
	      <nonterminal>Working_event</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>MobileComputingTopic</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>isIncluded</selector>
	    <xns1:expression>
	      <nonterminal>Activity</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>belongs_to_a_review_reference</selector>
	    <xns1:expression>
	      <nonterminal>Review_preference</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_a_topis_of_conference_parts</selector>
	    <xns1:expression>
	      <nonterminal>Conference_part</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isTopicOf</selector>
	    <xns1:expression>
	      <nonterminal>Working_event</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>CryptographyTopic</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>isIncluded</selector>
	    <xns1:expression>
	      <nonterminal>Activity</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>belongs_to_a_review_reference</selector>
	    <xns1:expression>
	      <nonterminal>Review_preference</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_a_topis_of_conference_parts</selector>
	    <xns1:expression>
	      <nonterminal>Conference_part</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isTopicOf</selector>
	    <xns1:expression>
	      <nonterminal>Working_event</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>CommunicationTheoryTopic</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>isIncluded</selector>
	    <xns1:expression>
	      <nonterminal>Activity</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>belongs_to_a_review_reference</selector>
	    <xns1:expression>
	      <nonterminal>Review_preference</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_a_topis_of_conference_parts</selector>
	    <xns1:expression>
	      <nonterminal>Conference_part</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isTopicOf</selector>
	    <xns1:expression>
	      <nonterminal>Working_event</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>DiningPlace</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>isLocationOf</selector>
	    <xns1:expression>
	      <nonterminal>ConferenceEvent</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_equipped_by</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Presenter</nonterminal>
    <xns1:expression>
      <nonterminal>Invited_Speaker</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>AcademiaOrganization</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>isProviderOf</selector>
	<xns1:expression>
	  <nonterminal>Sponsorship</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>IndustryOrganization</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>isProviderOf</selector>
	<xns1:expression>
	  <nonterminal>Sponsorship</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>NGO</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>isProviderOf</selector>
	<xns1:expression>
	  <nonterminal>Sponsorship</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>GovernmentOrganization</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>isProviderOf</selector>
	<xns1:expression>
	  <nonterminal>Sponsorship</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ComputerNetworksEnterpriseTopic</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ComputerNetworksSwitchingTopic</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ComputerNetworksSensorTopic</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ComputerNetworksSecurityTopic</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ComputerNetworksOpticalTopic</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ComputerNetworksMeasurementsTopic</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ComputerNetworksManagementTopic</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ComputerNetworksAapplicationsTopic</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ActivePaper</nonterminal>
    <xns1:expression>
      <nonterminal>RatedPapers</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ActivePaper</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>hasRating</selector>
	<xns1:expression>
	  <nonterminal>ReviewRating</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>PendingPaper</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>full_paper_size</selector>
	    <xns1:expression>
	      <nonterminal>Integer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isWrittenBy</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>isReviewedBy</selector>
		<xns1:expression>
		  <nonterminal>Person</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasReview</selector>
	    <xns1:expression>
	      <nonterminal>Review</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasReviewer</selector>
	    <xns1:expression>
	      <nonterminal>Possible_Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperIsSubmittedBy</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isRejectedBy</selector>
	    <xns1:expression>
	      <nonterminal>Chair</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isAcceptedBy</selector>
	    <xns1:expression>
	      <nonterminal>Chair</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperIsAssignedTo</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSecondaryTopic</selector>
	    <xns1:expression>
	      <nonterminal>ResearchTopic</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasMainTopic</selector>
	    <xns1:expression>
	      <nonterminal>ResearchTopic</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAuthor</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasStatus</selector>
	    <xns1:expression>
	      <nonterminal>PaperStatus</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasTitle</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasID</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAbstract</selector>
	    <xns1:expression>
	      <nonterminal>PaperAbstract</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isRatedBy</selector>
	    <xns1:expression>
	      <nonterminal>Review</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_written_by</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Abstract</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Title</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Students</selector>
	    <xns1:expression>
	      <nonterminal>Boolean</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Keywords</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasCo-author</selector>
	    <xns1:expression>
	      <nonterminal>Co-author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasBid</selector>
	    <xns1:expression>
	      <nonterminal>Bid</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasDecision</selector>
	    <xns1:expression>
	      <nonterminal>Decision</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>assignedTo</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSubjectArea</selector>
	    <xns1:expression>
	      <nonterminal>SubjectArea</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>readByReviewer</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperID</selector>
	    <xns1:expression>
	      <nonterminal>unsignedLong</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>title</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>acceptedBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>rejectedBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>readByMeta-Reviewer</selector>
	    <xns1:expression>
	      <nonterminal>Meta-Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>WithdrawnPaper</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>full_paper_size</selector>
	    <xns1:expression>
	      <nonterminal>Integer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isWrittenBy</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>isReviewedBy</selector>
		<xns1:expression>
		  <nonterminal>Person</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasReview</selector>
	    <xns1:expression>
	      <nonterminal>Review</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasReviewer</selector>
	    <xns1:expression>
	      <nonterminal>Possible_Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperIsSubmittedBy</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isRejectedBy</selector>
	    <xns1:expression>
	      <nonterminal>Chair</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isAcceptedBy</selector>
	    <xns1:expression>
	      <nonterminal>Chair</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperIsAssignedTo</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSecondaryTopic</selector>
	    <xns1:expression>
	      <nonterminal>ResearchTopic</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasMainTopic</selector>
	    <xns1:expression>
	      <nonterminal>ResearchTopic</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAuthor</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasStatus</selector>
	    <xns1:expression>
	      <nonterminal>PaperStatus</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasTitle</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasID</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAbstract</selector>
	    <xns1:expression>
	      <nonterminal>PaperAbstract</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isRatedBy</selector>
	    <xns1:expression>
	      <nonterminal>Review</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_written_by</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Abstract</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Title</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Students</selector>
	    <xns1:expression>
	      <nonterminal>Boolean</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Keywords</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasCo-author</selector>
	    <xns1:expression>
	      <nonterminal>Co-author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasBid</selector>
	    <xns1:expression>
	      <nonterminal>Bid</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasDecision</selector>
	    <xns1:expression>
	      <nonterminal>Decision</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>assignedTo</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSubjectArea</selector>
	    <xns1:expression>
	      <nonterminal>SubjectArea</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>readByReviewer</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperID</selector>
	    <xns1:expression>
	      <nonterminal>unsignedLong</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>title</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>acceptedBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>rejectedBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>readByMeta-Reviewer</selector>
	    <xns1:expression>
	      <nonterminal>Meta-Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>RejectedPaper</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>full_paper_size</selector>
	    <xns1:expression>
	      <nonterminal>Integer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isWrittenBy</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>isReviewedBy</selector>
		<xns1:expression>
		  <nonterminal>Person</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasReview</selector>
	    <xns1:expression>
	      <nonterminal>Review</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasReviewer</selector>
	    <xns1:expression>
	      <nonterminal>Possible_Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperIsSubmittedBy</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isRejectedBy</selector>
	    <xns1:expression>
	      <nonterminal>Chair</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isAcceptedBy</selector>
	    <xns1:expression>
	      <nonterminal>Chair</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperIsAssignedTo</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSecondaryTopic</selector>
	    <xns1:expression>
	      <nonterminal>ResearchTopic</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasMainTopic</selector>
	    <xns1:expression>
	      <nonterminal>ResearchTopic</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAuthor</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasStatus</selector>
	    <xns1:expression>
	      <nonterminal>PaperStatus</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasTitle</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasID</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAbstract</selector>
	    <xns1:expression>
	      <nonterminal>PaperAbstract</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isRatedBy</selector>
	    <xns1:expression>
	      <nonterminal>Review</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_written_by</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Abstract</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Title</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Students</selector>
	    <xns1:expression>
	      <nonterminal>Boolean</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Keywords</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasCo-author</selector>
	    <xns1:expression>
	      <nonterminal>Co-author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasBid</selector>
	    <xns1:expression>
	      <nonterminal>Bid</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasDecision</selector>
	    <xns1:expression>
	      <nonterminal>Decision</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>assignedTo</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSubjectArea</selector>
	    <xns1:expression>
	      <nonterminal>SubjectArea</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>readByReviewer</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperID</selector>
	    <xns1:expression>
	      <nonterminal>unsignedLong</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>title</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>acceptedBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>rejectedBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>readByMeta-Reviewer</selector>
	    <xns1:expression>
	      <nonterminal>Meta-Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>PublishedPaper</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>full_paper_size</selector>
	    <xns1:expression>
	      <nonterminal>Integer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isWrittenBy</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>isReviewedBy</selector>
		<xns1:expression>
		  <nonterminal>Person</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasReview</selector>
	    <xns1:expression>
	      <nonterminal>Review</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasReviewer</selector>
	    <xns1:expression>
	      <nonterminal>Possible_Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperIsSubmittedBy</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isRejectedBy</selector>
	    <xns1:expression>
	      <nonterminal>Chair</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isAcceptedBy</selector>
	    <xns1:expression>
	      <nonterminal>Chair</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperIsAssignedTo</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSecondaryTopic</selector>
	    <xns1:expression>
	      <nonterminal>ResearchTopic</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasMainTopic</selector>
	    <xns1:expression>
	      <nonterminal>ResearchTopic</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAuthor</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasStatus</selector>
	    <xns1:expression>
	      <nonterminal>PaperStatus</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasTitle</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasID</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAbstract</selector>
	    <xns1:expression>
	      <nonterminal>PaperAbstract</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isRatedBy</selector>
	    <xns1:expression>
	      <nonterminal>Review</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_written_by</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Abstract</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Title</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Students</selector>
	    <xns1:expression>
	      <nonterminal>Boolean</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Keywords</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasCo-author</selector>
	    <xns1:expression>
	      <nonterminal>Co-author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasBid</selector>
	    <xns1:expression>
	      <nonterminal>Bid</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasDecision</selector>
	    <xns1:expression>
	      <nonterminal>Decision</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>assignedTo</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSubjectArea</selector>
	    <xns1:expression>
	      <nonterminal>SubjectArea</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>readByReviewer</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperID</selector>
	    <xns1:expression>
	      <nonterminal>unsignedLong</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>title</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>acceptedBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>rejectedBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>readByMeta-Reviewer</selector>
	    <xns1:expression>
	      <nonterminal>Meta-Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Attendee</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>inverse_of_add</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>execute</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>get</selector>
	    <xns1:expression>
	      <nonterminal>Inforamtion</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>use</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>register</selector>
	    <xns1:expression>
	      <nonterminal>Account</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>modify</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>take_part_in</selector>
	    <xns1:expression>
	      <nonterminal>Event</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>remove</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>add</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>added_by</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasConflictOfInterest</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>email</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>contributes</selector>
	    <xns1:expression>
	      <nonterminal>Conference_document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_an_email</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_the_first_name</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_gender</selector>
	    <xns1:expression>
	      <nonterminal>EEnum</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_the_last_name</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>authorOf</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>prepare</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>occupy</selector>
		<xns1:expression>
		  <nonterminal>Presenter_city</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>is_present_in</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>write</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>obtain</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>send</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>speak_in</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>pay</selector>
	    <xns1:expression>
	      <nonterminal>Money</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>sign</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_present</selector>
	    <xns1:expression>
	      <nonterminal>Time</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>give</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>need</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasMail</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>worksForCompany</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAffiliation</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFirstName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasLastName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>employedBy</selector>
	    <xns1:expression>
	      <nonterminal>Organization</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasHomePage</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSurname</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFax</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFirstName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasPhone</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasEmail</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>attendeeAt</selector>
	    <xns1:expression>
	      <nonterminal>ConferenceEvent</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isMemberOf</selector>
	    <xns1:expression>
	      <nonterminal>Conference</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFirstName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasBiography</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasLastName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>CoffeeBreak</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>FreeTimeBreak</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>MealBreak</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ClosingTalk</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>WelcomeTalk</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>TalkEvent</nonterminal>
    <xns1:expression>
      <nonterminal>ClosingTalk</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>TalkEvent</nonterminal>
    <xns1:expression>
      <nonterminal>WelcomeTalk</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>TalkEvent</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>ClosingTalk</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>WelcomeTalk</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>SessionChair</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>inverse_of_add</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>execute</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>get</selector>
	    <xns1:expression>
	      <nonterminal>Inforamtion</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>use</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>register</selector>
	    <xns1:expression>
	      <nonterminal>Account</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>modify</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>take_part_in</selector>
	    <xns1:expression>
	      <nonterminal>Event</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>remove</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>add</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>added_by</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasConflictOfInterest</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>email</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>contributes</selector>
	    <xns1:expression>
	      <nonterminal>Conference_document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_an_email</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_the_first_name</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_gender</selector>
	    <xns1:expression>
	      <nonterminal>EEnum</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_the_last_name</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>authorOf</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>prepare</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>occupy</selector>
		<xns1:expression>
		  <nonterminal>Presenter_city</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>is_present_in</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>write</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>obtain</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>send</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>speak_in</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>pay</selector>
	    <xns1:expression>
	      <nonterminal>Money</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>sign</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_present</selector>
	    <xns1:expression>
	      <nonterminal>Time</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>give</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>need</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasMail</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>worksForCompany</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAffiliation</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFirstName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasLastName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>employedBy</selector>
	    <xns1:expression>
	      <nonterminal>Organization</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasHomePage</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSurname</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFax</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFirstName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasPhone</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasEmail</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>attendeeAt</selector>
	    <xns1:expression>
	      <nonterminal>ConferenceEvent</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isMemberOf</selector>
	    <xns1:expression>
	      <nonterminal>Conference</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFirstName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasBiography</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasLastName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>TPCMember</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>inverse_of_add</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>execute</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>get</selector>
	    <xns1:expression>
	      <nonterminal>Inforamtion</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>use</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>register</selector>
	    <xns1:expression>
	      <nonterminal>Account</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>modify</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>take_part_in</selector>
	    <xns1:expression>
	      <nonterminal>Event</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>remove</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>add</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>added_by</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasConflictOfInterest</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>email</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>contributes</selector>
	    <xns1:expression>
	      <nonterminal>Conference_document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_an_email</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_the_first_name</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_gender</selector>
	    <xns1:expression>
	      <nonterminal>EEnum</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_the_last_name</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>authorOf</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>prepare</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>occupy</selector>
		<xns1:expression>
		  <nonterminal>Presenter_city</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>is_present_in</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>write</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>obtain</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>send</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>speak_in</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>pay</selector>
	    <xns1:expression>
	      <nonterminal>Money</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>sign</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_present</selector>
	    <xns1:expression>
	      <nonterminal>Time</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>give</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>need</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasMail</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>worksForCompany</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAffiliation</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFirstName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasLastName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>employedBy</selector>
	    <xns1:expression>
	      <nonterminal>Organization</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasHomePage</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSurname</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFax</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFirstName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasPhone</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasEmail</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>attendeeAt</selector>
	    <xns1:expression>
	      <nonterminal>ConferenceEvent</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isMemberOf</selector>
	    <xns1:expression>
	      <nonterminal>Conference</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFirstName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasBiography</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasLastName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>TwoLevelConference</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>is_in_phase</selector>
	    <xns1:expression>
	      <nonterminal>phase_of_conference</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_program</selector>
	    <xns1:expression>
	      <nonterminal>program</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasMember</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>endDate</selector>
	    <xns1:expression>
	      <nonterminal>dateTime</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperDueOn</selector>
	    <xns1:expression>
	      <nonterminal>dateTime</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>registrationDueOn</selector>
	    <xns1:expression>
	      <nonterminal>dateTime</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>manuscriptDueOn</selector>
	    <xns1:expression>
	      <nonterminal>dateTime</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>startDate</selector>
	    <xns1:expression>
	      <nonterminal>dateTime</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasCountry</selector>
	    <xns1:expression>
	      <nonterminal>Country</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isOrganizedBy</selector>
	    <xns1:expression>
	      <nonterminal>OrganizingCommittee</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>annualOrder</selector>
	    <xns1:expression>
	      <nonterminal>Integer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>takesPlace</selector>
	    <xns1:expression>
	      <nonterminal>Location</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAcronym</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasConferenceMember</selector>
	    <xns1:expression>
	      <nonterminal>ConferenceMember</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperAssignmentFinalizedBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>reviewCriteriaEnteredBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperAssignmentToolsRunBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>virtualMeetingEnabledBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hardcopyMailingManifestsPrintedBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>detailsEnteredBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>reviewerBiddingStartedBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>date</selector>
	    <xns1:expression>
	      <nonterminal>date</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>reviewsPerPaper</selector>
	    <xns1:expression>
	      <nonterminal>Integer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>logoURL</selector>
	    <xns1:expression>
	      <nonterminal>anyURI</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>acceptsHardcopySubmissions</selector>
	    <xns1:expression>
	      <nonterminal>Boolean</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>siteURL</selector>
	    <xns1:expression>
	      <nonterminal>anyURI</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>CallForPapers</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>forEvent</selector>
	    <xns1:expression>
	      <nonterminal>AcademicEvent</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>isInitiatedBy</selector>
		<xns1:expression>
		  <nonterminal>Person</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSubmissionInstructions</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSubmissionDeadline</selector>
	    <xns1:expression>
	      <nonterminal>dateTime</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>TextualReviewQuestion</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>NumericalReviewQuestion</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>OrganizationalMeeting</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>hasCall</selector>
	<xns1:expression>
	  <nonterminal>Call</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>PaperPresentation</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>relatedToPaper</selector>
	<xns1:expression>
	  <nonterminal>AcceptedPaper</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>AcademicEvent</nonterminal>
    <xns1:expression>
      <nonterminal>TalkEvent</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>AcademicEvent</nonterminal>
    <xns1:expression>
      <nonterminal>OrganizationalMeeting</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>AcademicEvent</nonterminal>
    <xns1:expression>
      <nonterminal>PaperPresentation</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>AcademicEvent</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>hasCall</selector>
	<xns1:expression>
	  <nonterminal>Call</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>PersonalPublicationHistory</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Excursion</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>SocialEvent</nonterminal>
    <xns1:expression>
      <nonterminal>Excursion</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>SocialEvent</nonterminal>
    <xns1:expression>
      <nonterminal>Reception</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>SocialEvent</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>Excursion</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Reception</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>CallForReviews</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>forEvent</selector>
	    <xns1:expression>
	      <nonterminal>AcademicEvent</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>isInitiatedBy</selector>
		<xns1:expression>
		  <nonterminal>Person</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSubmissionInstructions</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSubmissionDeadline</selector>
	    <xns1:expression>
	      <nonterminal>dateTime</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>PersonalReviewHistory</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>isReviewHistoryOf</selector>
	<xns1:expression>
	  <nonterminal>Reviewer</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ConferenceVenuePlace</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>isLocationOf</selector>
	    <xns1:expression>
	      <nonterminal>ConferenceEvent</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_equipped_by</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>CallForManuscripts</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>forEvent</selector>
	    <xns1:expression>
	      <nonterminal>AcademicEvent</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>isInitiatedBy</selector>
		<xns1:expression>
		  <nonterminal>Person</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSubmissionInstructions</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSubmissionDeadline</selector>
	    <xns1:expression>
	      <nonterminal>dateTime</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>SingleLevelConference</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>is_in_phase</selector>
	    <xns1:expression>
	      <nonterminal>phase_of_conference</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_program</selector>
	    <xns1:expression>
	      <nonterminal>program</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasMember</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>endDate</selector>
	    <xns1:expression>
	      <nonterminal>dateTime</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperDueOn</selector>
	    <xns1:expression>
	      <nonterminal>dateTime</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>registrationDueOn</selector>
	    <xns1:expression>
	      <nonterminal>dateTime</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>manuscriptDueOn</selector>
	    <xns1:expression>
	      <nonterminal>dateTime</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>startDate</selector>
	    <xns1:expression>
	      <nonterminal>dateTime</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasCountry</selector>
	    <xns1:expression>
	      <nonterminal>Country</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isOrganizedBy</selector>
	    <xns1:expression>
	      <nonterminal>OrganizingCommittee</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>annualOrder</selector>
	    <xns1:expression>
	      <nonterminal>Integer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>takesPlace</selector>
	    <xns1:expression>
	      <nonterminal>Location</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAcronym</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasConferenceMember</selector>
	    <xns1:expression>
	      <nonterminal>ConferenceMember</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperAssignmentFinalizedBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>reviewCriteriaEnteredBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperAssignmentToolsRunBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>virtualMeetingEnabledBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hardcopyMailingManifestsPrintedBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>detailsEnteredBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>reviewerBiddingStartedBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>date</selector>
	    <xns1:expression>
	      <nonterminal>date</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>reviewsPerPaper</selector>
	    <xns1:expression>
	      <nonterminal>Integer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>logoURL</selector>
	    <xns1:expression>
	      <nonterminal>anyURI</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>acceptsHardcopySubmissions</selector>
	    <xns1:expression>
	      <nonterminal>Boolean</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>siteURL</selector>
	    <xns1:expression>
	      <nonterminal>anyURI</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>MeetingRoomPlace</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>isLocationOf</selector>
	    <xns1:expression>
	      <nonterminal>ConferenceEvent</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_equipped_by</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>AccommodationPlace</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>isLocationOf</selector>
	    <xns1:expression>
	      <nonterminal>ConferenceEvent</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_equipped_by</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>RatedPapers</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>hasRating</selector>
	<xns1:expression>
	  <nonterminal>ReviewRating</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>TravelGrant</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>providedBy</selector>
	    <xns1:expression>
	      <nonterminal>Organization</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasCostCurrency</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasCostAmount</selector>
	    <xns1:expression>
	      <nonterminal>Integer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ConferenceDinner</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>hasMenu</selector>
	<xns1:expression>
	  <nonterminal>MealMenu</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Event</nonterminal>
    <xns1:expression>
      <nonterminal>Symposium</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Event</nonterminal>
    <xns1:expression>
      <nonterminal>Social_event</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Event</nonterminal>
    <xns1:expression>
      <nonterminal>Administrative_event</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Event</nonterminal>
    <xns1:expression>
      <nonterminal>Working_event</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Event</nonterminal>
    <xns1:expression>
      <nonterminal>pc_meeting</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Event</nonterminal>
    <xns1:expression>
      <nonterminal>session</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Event</nonterminal>
    <xns1:expression>
      <nonterminal>Social_Event</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Event</nonterminal>
    <xns1:expression>
      <nonterminal>Scientific_Event</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Event</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>conists_of</selector>
	    <xns1:expression>
	      <nonterminal>Event_Tracks</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>confirmed_by</selector>
	    <xns1:expression>
	      <nonterminal>Approval_Email</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>defined_by</selector>
	    <xns1:expression>
	      <nonterminal>Event_Setup</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>approved_by</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>starts_on</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>ends_on</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_startdate</selector>
	    <xns1:expression>
	      <nonterminal>dateTime</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_enddate</selector>
	    <xns1:expression>
	      <nonterminal>dateTime</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>eventOnList</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>partOfEvent</selector>
	    <xns1:expression>
	      <nonterminal>Event</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasEvent</selector>
	    <xns1:expression>
	      <nonterminal>Event</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>organisedBy</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>heldIn</selector>
	    <xns1:expression>
	      <nonterminal>Location</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Evaluated_Paper</nonterminal>
    <xns1:expression>
      <nonterminal>Accepted_Paper</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Evaluated_Paper</nonterminal>
    <xns1:expression>
      <nonterminal>Rejected_Paper</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Evaluated_Paper</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>hasReview</selector>
	<xns1:expression>
	  <nonterminal>Review</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Camera_Ready_Paper</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>full_paper_size</selector>
	    <xns1:expression>
	      <nonterminal>Integer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isWrittenBy</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>isReviewedBy</selector>
		<xns1:expression>
		  <nonterminal>Person</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasReview</selector>
	    <xns1:expression>
	      <nonterminal>Review</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasReviewer</selector>
	    <xns1:expression>
	      <nonterminal>Possible_Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperIsSubmittedBy</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isRejectedBy</selector>
	    <xns1:expression>
	      <nonterminal>Chair</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isAcceptedBy</selector>
	    <xns1:expression>
	      <nonterminal>Chair</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperIsAssignedTo</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSecondaryTopic</selector>
	    <xns1:expression>
	      <nonterminal>ResearchTopic</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasMainTopic</selector>
	    <xns1:expression>
	      <nonterminal>ResearchTopic</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAuthor</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasStatus</selector>
	    <xns1:expression>
	      <nonterminal>PaperStatus</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasTitle</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasID</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAbstract</selector>
	    <xns1:expression>
	      <nonterminal>PaperAbstract</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isRatedBy</selector>
	    <xns1:expression>
	      <nonterminal>Review</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_written_by</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Abstract</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Title</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Students</selector>
	    <xns1:expression>
	      <nonterminal>Boolean</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Keywords</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasCo-author</selector>
	    <xns1:expression>
	      <nonterminal>Co-author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasBid</selector>
	    <xns1:expression>
	      <nonterminal>Bid</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasDecision</selector>
	    <xns1:expression>
	      <nonterminal>Decision</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>assignedTo</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSubjectArea</selector>
	    <xns1:expression>
	      <nonterminal>SubjectArea</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>readByReviewer</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperID</selector>
	    <xns1:expression>
	      <nonterminal>unsignedLong</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>title</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>acceptedBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>rejectedBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>readByMeta-Reviewer</selector>
	    <xns1:expression>
	      <nonterminal>Meta-Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Positive_Review</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>writtenBy</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>reviews</selector>
	    <xns1:expression>
	      <nonterminal>Reviewed_contribution</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>gives_classification</selector>
	    <xns1:expression>
	      <nonterminal>classification</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_created_in</selector>
	    <xns1:expression>
	      <nonterminal>Activity</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>review_written_by</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>reviewOfPaper</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>reviewWrittenBy</selector>
	    <xns1:expression>
	      <nonterminal>Possible_Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>containsEvaluation</selector>
	    <xns1:expression>
	      <nonterminal>Evaluation</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>rates</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isWritenBy</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Workshop_Paper</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>full_paper_size</selector>
	    <xns1:expression>
	      <nonterminal>Integer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isWrittenBy</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>isReviewedBy</selector>
		<xns1:expression>
		  <nonterminal>Person</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasReview</selector>
	    <xns1:expression>
	      <nonterminal>Review</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasReviewer</selector>
	    <xns1:expression>
	      <nonterminal>Possible_Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperIsSubmittedBy</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isRejectedBy</selector>
	    <xns1:expression>
	      <nonterminal>Chair</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isAcceptedBy</selector>
	    <xns1:expression>
	      <nonterminal>Chair</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperIsAssignedTo</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSecondaryTopic</selector>
	    <xns1:expression>
	      <nonterminal>ResearchTopic</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasMainTopic</selector>
	    <xns1:expression>
	      <nonterminal>ResearchTopic</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAuthor</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasStatus</selector>
	    <xns1:expression>
	      <nonterminal>PaperStatus</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasTitle</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasID</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAbstract</selector>
	    <xns1:expression>
	      <nonterminal>PaperAbstract</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isRatedBy</selector>
	    <xns1:expression>
	      <nonterminal>Review</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_written_by</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Abstract</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Title</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Students</selector>
	    <xns1:expression>
	      <nonterminal>Boolean</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Keywords</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasCo-author</selector>
	    <xns1:expression>
	      <nonterminal>Co-author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasBid</selector>
	    <xns1:expression>
	      <nonterminal>Bid</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasDecision</selector>
	    <xns1:expression>
	      <nonterminal>Decision</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>assignedTo</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSubjectArea</selector>
	    <xns1:expression>
	      <nonterminal>SubjectArea</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>readByReviewer</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperID</selector>
	    <xns1:expression>
	      <nonterminal>unsignedLong</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>title</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>acceptedBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>rejectedBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>readByMeta-Reviewer</selector>
	    <xns1:expression>
	      <nonterminal>Meta-Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Industrial_Paper</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>full_paper_size</selector>
	    <xns1:expression>
	      <nonterminal>Integer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isWrittenBy</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>isReviewedBy</selector>
		<xns1:expression>
		  <nonterminal>Person</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasReview</selector>
	    <xns1:expression>
	      <nonterminal>Review</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasReviewer</selector>
	    <xns1:expression>
	      <nonterminal>Possible_Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperIsSubmittedBy</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isRejectedBy</selector>
	    <xns1:expression>
	      <nonterminal>Chair</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isAcceptedBy</selector>
	    <xns1:expression>
	      <nonterminal>Chair</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperIsAssignedTo</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSecondaryTopic</selector>
	    <xns1:expression>
	      <nonterminal>ResearchTopic</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasMainTopic</selector>
	    <xns1:expression>
	      <nonterminal>ResearchTopic</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAuthor</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasStatus</selector>
	    <xns1:expression>
	      <nonterminal>PaperStatus</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasTitle</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasID</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAbstract</selector>
	    <xns1:expression>
	      <nonterminal>PaperAbstract</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isRatedBy</selector>
	    <xns1:expression>
	      <nonterminal>Review</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_written_by</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Abstract</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Title</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Students</selector>
	    <xns1:expression>
	      <nonterminal>Boolean</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Keywords</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasCo-author</selector>
	    <xns1:expression>
	      <nonterminal>Co-author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasBid</selector>
	    <xns1:expression>
	      <nonterminal>Bid</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasDecision</selector>
	    <xns1:expression>
	      <nonterminal>Decision</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>assignedTo</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSubjectArea</selector>
	    <xns1:expression>
	      <nonterminal>SubjectArea</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>readByReviewer</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperID</selector>
	    <xns1:expression>
	      <nonterminal>unsignedLong</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>title</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>acceptedBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>rejectedBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>readByMeta-Reviewer</selector>
	    <xns1:expression>
	      <nonterminal>Meta-Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_Paper</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>full_paper_size</selector>
	    <xns1:expression>
	      <nonterminal>Integer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isWrittenBy</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>isReviewedBy</selector>
		<xns1:expression>
		  <nonterminal>Person</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasReview</selector>
	    <xns1:expression>
	      <nonterminal>Review</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasReviewer</selector>
	    <xns1:expression>
	      <nonterminal>Possible_Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperIsSubmittedBy</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isRejectedBy</selector>
	    <xns1:expression>
	      <nonterminal>Chair</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isAcceptedBy</selector>
	    <xns1:expression>
	      <nonterminal>Chair</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperIsAssignedTo</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSecondaryTopic</selector>
	    <xns1:expression>
	      <nonterminal>ResearchTopic</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasMainTopic</selector>
	    <xns1:expression>
	      <nonterminal>ResearchTopic</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAuthor</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasStatus</selector>
	    <xns1:expression>
	      <nonterminal>PaperStatus</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasTitle</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasID</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAbstract</selector>
	    <xns1:expression>
	      <nonterminal>PaperAbstract</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isRatedBy</selector>
	    <xns1:expression>
	      <nonterminal>Review</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_written_by</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Abstract</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Title</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Students</selector>
	    <xns1:expression>
	      <nonterminal>Boolean</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Keywords</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasCo-author</selector>
	    <xns1:expression>
	      <nonterminal>Co-author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasBid</selector>
	    <xns1:expression>
	      <nonterminal>Bid</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasDecision</selector>
	    <xns1:expression>
	      <nonterminal>Decision</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>assignedTo</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSubjectArea</selector>
	    <xns1:expression>
	      <nonterminal>SubjectArea</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>readByReviewer</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperID</selector>
	    <xns1:expression>
	      <nonterminal>unsignedLong</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>title</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>acceptedBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>rejectedBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>readByMeta-Reviewer</selector>
	    <xns1:expression>
	      <nonterminal>Meta-Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Industrial_Session</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_Session</nonterminal>
    <xns1:expression>
      <nonterminal>Industrial_Session</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Regular_Session</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>hasAssignedPaper</selector>
	    <xns1:expression>
	      <nonterminal>AcceptedPaper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>room</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isAssociatedTo</selector>
	    <xns1:expression>
	      <nonterminal>Slot</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasChair</selector>
	    <xns1:expression>
	      <nonterminal>Chair</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Poster_Session</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>hasAssignedPaper</selector>
	    <xns1:expression>
	      <nonterminal>AcceptedPaper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>room</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isAssociatedTo</selector>
	    <xns1:expression>
	      <nonterminal>Slot</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasChair</selector>
	    <xns1:expression>
	      <nonterminal>Chair</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Demo_Session</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>hasAssignedPaper</selector>
	    <xns1:expression>
	      <nonterminal>AcceptedPaper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>room</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isAssociatedTo</selector>
	    <xns1:expression>
	      <nonterminal>Slot</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasChair</selector>
	    <xns1:expression>
	      <nonterminal>Chair</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Paper_Author</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>inverse_of_add</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>execute</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>get</selector>
	    <xns1:expression>
	      <nonterminal>Inforamtion</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>use</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>register</selector>
	    <xns1:expression>
	      <nonterminal>Account</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>modify</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>take_part_in</selector>
	    <xns1:expression>
	      <nonterminal>Event</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>remove</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>add</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>added_by</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasConflictOfInterest</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>email</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>contributes</selector>
	    <xns1:expression>
	      <nonterminal>Conference_document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_an_email</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_the_first_name</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_gender</selector>
	    <xns1:expression>
	      <nonterminal>EEnum</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_the_last_name</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>authorOf</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>prepare</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>occupy</selector>
		<xns1:expression>
		  <nonterminal>Presenter_city</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>is_present_in</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>write</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>obtain</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>send</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>speak_in</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>pay</selector>
	    <xns1:expression>
	      <nonterminal>Money</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>sign</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_present</selector>
	    <xns1:expression>
	      <nonterminal>Time</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>give</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>need</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasMail</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>worksForCompany</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAffiliation</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFirstName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasLastName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>employedBy</selector>
	    <xns1:expression>
	      <nonterminal>Organization</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasHomePage</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSurname</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFax</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFirstName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasPhone</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasEmail</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>attendeeAt</selector>
	    <xns1:expression>
	      <nonterminal>ConferenceEvent</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isMemberOf</selector>
	    <xns1:expression>
	      <nonterminal>Conference</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFirstName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasBiography</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasLastName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_Trip</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Social_Event</nonterminal>
    <xns1:expression>
      <nonterminal>Conference_Trip</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Social_Event</nonterminal>
    <xns1:expression>
      <nonterminal>Conference_Banquet</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Social_Event</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>Conference_Trip</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Conference_Banquet</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Tutorial_Abstract</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>is_the_1th_part_of</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>part_of_article</selector>
	    <xns1:expression>
	      <nonterminal>article</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_Participant</nonterminal>
    <xns1:expression>
      <nonterminal>Demo_Chair</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_Participant</nonterminal>
    <xns1:expression>
      <nonterminal>OC_Member</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_Participant</nonterminal>
    <xns1:expression>
      <nonterminal>Early-Registered_Participant</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_Participant</nonterminal>
    <xns1:expression>
      <nonterminal>Late-Registered_Participant</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_Participant</nonterminal>
    <xns1:expression>
      <nonterminal>Tutorial_Chair</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_Participant</nonterminal>
    <xns1:expression>
      <nonterminal>PC_Chair</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_Participant</nonterminal>
    <xns1:expression>
      <nonterminal>Workshop_Chair</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_Participant</nonterminal>
    <xns1:expression>
      <nonterminal>Presenter</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_Participant</nonterminal>
    <xns1:expression>
      <nonterminal>Session_Chair</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_Participant</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>Demo_Chair</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>OC_Member</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Early-Registered_Participant</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Late-Registered_Participant</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Submitted_Paper</nonterminal>
    <xns1:expression>
      <nonterminal>Assigned_Paper</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Submitted_Paper</nonterminal>
    <xns1:expression>
      <nonterminal>Reviewed_Paper</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Submitted_Paper</nonterminal>
    <xns1:expression>
      <nonterminal>Advocated_Paper</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Submitted_Paper</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>is_stored_in</selector>
	    <xns1:expression>
	      <nonterminal>Paper_File</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_been_sent_by</selector>
	    <xns1:expression>
	      <nonterminal>Contact_Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Paper_Id</selector>
	    <xns1:expression>
	      <nonterminal>Integer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Comments_To_Chair</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Assigned_Paper</nonterminal>
    <xns1:expression>
      <nonterminal>Evaluated_Paper</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Assigned_Paper</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>hasReviewer</selector>
	<xns1:expression>
	  <nonterminal>Possible_Reviewer</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Negative_Review</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>writtenBy</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>reviews</selector>
	    <xns1:expression>
	      <nonterminal>Reviewed_contribution</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>gives_classification</selector>
	    <xns1:expression>
	      <nonterminal>classification</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_created_in</selector>
	    <xns1:expression>
	      <nonterminal>Activity</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>review_written_by</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>reviewOfPaper</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>reviewWrittenBy</selector>
	    <xns1:expression>
	      <nonterminal>Possible_Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>containsEvaluation</selector>
	    <xns1:expression>
	      <nonterminal>Evaluation</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>rates</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isWritenBy</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Neutral_Review</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>writtenBy</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>reviews</selector>
	    <xns1:expression>
	      <nonterminal>Reviewed_contribution</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>gives_classification</selector>
	    <xns1:expression>
	      <nonterminal>classification</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_created_in</selector>
	    <xns1:expression>
	      <nonterminal>Activity</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>review_written_by</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>reviewOfPaper</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>reviewWrittenBy</selector>
	    <xns1:expression>
	      <nonterminal>Possible_Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>containsEvaluation</selector>
	    <xns1:expression>
	      <nonterminal>Evaluation</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>rates</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isWritenBy</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Organising_Agency</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>publisherOf</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>technicallyOrganises</selector>
	    <xns1:expression>
	      <nonterminal>Thing</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Academic_Institution</nonterminal>
    <xns1:expression>
      <nonterminal>Research_Institute</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Academic_Institution</nonterminal>
    <xns1:expression>
      <nonterminal>University</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Academic_Institution</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>scientificallyOrganises</selector>
	<xns1:expression>
	  <nonterminal>Academic_Institution</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Organisation</nonterminal>
    <xns1:expression>
      <nonterminal>Organising_Agency</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Organisation</nonterminal>
    <xns1:expression>
      <nonterminal>Academic_Institution</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Organisation</nonterminal>
    <xns1:expression>
      <nonterminal>Proceedings_Publisher</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Organisation</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>publisherOf</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>technicallyOrganises</selector>
	    <xns1:expression>
	      <nonterminal>Thing</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Proceedings_Publisher</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>publisherOf</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>technicallyOrganises</selector>
	    <xns1:expression>
	      <nonterminal>Thing</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Poster_Paper</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>full_paper_size</selector>
	    <xns1:expression>
	      <nonterminal>Integer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isWrittenBy</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>isReviewedBy</selector>
		<xns1:expression>
		  <nonterminal>Person</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasReview</selector>
	    <xns1:expression>
	      <nonterminal>Review</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasReviewer</selector>
	    <xns1:expression>
	      <nonterminal>Possible_Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperIsSubmittedBy</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isRejectedBy</selector>
	    <xns1:expression>
	      <nonterminal>Chair</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isAcceptedBy</selector>
	    <xns1:expression>
	      <nonterminal>Chair</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperIsAssignedTo</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSecondaryTopic</selector>
	    <xns1:expression>
	      <nonterminal>ResearchTopic</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasMainTopic</selector>
	    <xns1:expression>
	      <nonterminal>ResearchTopic</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAuthor</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasStatus</selector>
	    <xns1:expression>
	      <nonterminal>PaperStatus</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasTitle</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasID</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAbstract</selector>
	    <xns1:expression>
	      <nonterminal>PaperAbstract</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isRatedBy</selector>
	    <xns1:expression>
	      <nonterminal>Review</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_written_by</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Abstract</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Title</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Students</selector>
	    <xns1:expression>
	      <nonterminal>Boolean</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Keywords</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasCo-author</selector>
	    <xns1:expression>
	      <nonterminal>Co-author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasBid</selector>
	    <xns1:expression>
	      <nonterminal>Bid</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasDecision</selector>
	    <xns1:expression>
	      <nonterminal>Decision</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>assignedTo</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSubjectArea</selector>
	    <xns1:expression>
	      <nonterminal>SubjectArea</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>readByReviewer</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperID</selector>
	    <xns1:expression>
	      <nonterminal>unsignedLong</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>title</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>acceptedBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>rejectedBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>readByMeta-Reviewer</selector>
	    <xns1:expression>
	      <nonterminal>Meta-Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Regular_Paper</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>full_paper_size</selector>
	    <xns1:expression>
	      <nonterminal>Integer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isWrittenBy</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>isReviewedBy</selector>
		<xns1:expression>
		  <nonterminal>Person</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasReview</selector>
	    <xns1:expression>
	      <nonterminal>Review</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasReviewer</selector>
	    <xns1:expression>
	      <nonterminal>Possible_Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperIsSubmittedBy</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isRejectedBy</selector>
	    <xns1:expression>
	      <nonterminal>Chair</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isAcceptedBy</selector>
	    <xns1:expression>
	      <nonterminal>Chair</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperIsAssignedTo</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSecondaryTopic</selector>
	    <xns1:expression>
	      <nonterminal>ResearchTopic</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasMainTopic</selector>
	    <xns1:expression>
	      <nonterminal>ResearchTopic</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAuthor</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasStatus</selector>
	    <xns1:expression>
	      <nonterminal>PaperStatus</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasTitle</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasID</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAbstract</selector>
	    <xns1:expression>
	      <nonterminal>PaperAbstract</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isRatedBy</selector>
	    <xns1:expression>
	      <nonterminal>Review</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_written_by</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Abstract</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Title</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Students</selector>
	    <xns1:expression>
	      <nonterminal>Boolean</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Keywords</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasCo-author</selector>
	    <xns1:expression>
	      <nonterminal>Co-author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasBid</selector>
	    <xns1:expression>
	      <nonterminal>Bid</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasDecision</selector>
	    <xns1:expression>
	      <nonterminal>Decision</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>assignedTo</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSubjectArea</selector>
	    <xns1:expression>
	      <nonterminal>SubjectArea</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>readByReviewer</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperID</selector>
	    <xns1:expression>
	      <nonterminal>unsignedLong</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>title</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>acceptedBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>rejectedBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>readByMeta-Reviewer</selector>
	    <xns1:expression>
	      <nonterminal>Meta-Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Demo_Paper</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>full_paper_size</selector>
	    <xns1:expression>
	      <nonterminal>Integer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isWrittenBy</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>isReviewedBy</selector>
		<xns1:expression>
		  <nonterminal>Person</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasReview</selector>
	    <xns1:expression>
	      <nonterminal>Review</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasReviewer</selector>
	    <xns1:expression>
	      <nonterminal>Possible_Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperIsSubmittedBy</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isRejectedBy</selector>
	    <xns1:expression>
	      <nonterminal>Chair</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isAcceptedBy</selector>
	    <xns1:expression>
	      <nonterminal>Chair</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperIsAssignedTo</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSecondaryTopic</selector>
	    <xns1:expression>
	      <nonterminal>ResearchTopic</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasMainTopic</selector>
	    <xns1:expression>
	      <nonterminal>ResearchTopic</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAuthor</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasStatus</selector>
	    <xns1:expression>
	      <nonterminal>PaperStatus</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasTitle</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasID</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAbstract</selector>
	    <xns1:expression>
	      <nonterminal>PaperAbstract</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isRatedBy</selector>
	    <xns1:expression>
	      <nonterminal>Review</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_written_by</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Abstract</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Title</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Students</selector>
	    <xns1:expression>
	      <nonterminal>Boolean</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Keywords</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasCo-author</selector>
	    <xns1:expression>
	      <nonterminal>Co-author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasBid</selector>
	    <xns1:expression>
	      <nonterminal>Bid</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasDecision</selector>
	    <xns1:expression>
	      <nonterminal>Decision</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>assignedTo</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSubjectArea</selector>
	    <xns1:expression>
	      <nonterminal>SubjectArea</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>readByReviewer</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paperID</selector>
	    <xns1:expression>
	      <nonterminal>unsignedLong</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>title</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>acceptedBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>rejectedBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>readByMeta-Reviewer</selector>
	    <xns1:expression>
	      <nonterminal>Meta-Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Location</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>locationOf</selector>
	<xns1:expression>
	  <nonterminal>Event</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Research_Institute</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>scientificallyOrganises</selector>
	<xns1:expression>
	  <nonterminal>Academic_Institution</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Scientific_Event</nonterminal>
    <xns1:expression>
      <nonterminal>Individual_Presentation</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Scientific_Event</nonterminal>
    <xns1:expression>
      <nonterminal>Conference</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Scientific_Event</nonterminal>
    <xns1:expression>
      <nonterminal>Track</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Scientific_Event</nonterminal>
    <xns1:expression>
      <nonterminal>Workshop</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Invited_Talk_Abstract</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>is_the_1th_part_of</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>part_of_article</selector>
	    <xns1:expression>
	      <nonterminal>article</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Agency_Staff_Member</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>inverse_of_add</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>execute</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>get</selector>
	    <xns1:expression>
	      <nonterminal>Inforamtion</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>use</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>register</selector>
	    <xns1:expression>
	      <nonterminal>Account</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>modify</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>take_part_in</selector>
	    <xns1:expression>
	      <nonterminal>Event</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>remove</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>add</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>added_by</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasConflictOfInterest</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>email</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>contributes</selector>
	    <xns1:expression>
	      <nonterminal>Conference_document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_an_email</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_the_first_name</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_gender</selector>
	    <xns1:expression>
	      <nonterminal>EEnum</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_the_last_name</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>authorOf</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>prepare</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>occupy</selector>
		<xns1:expression>
		  <nonterminal>Presenter_city</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>is_present_in</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>write</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>obtain</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>send</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>speak_in</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>pay</selector>
	    <xns1:expression>
	      <nonterminal>Money</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>sign</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_present</selector>
	    <xns1:expression>
	      <nonterminal>Time</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>give</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>need</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasMail</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>worksForCompany</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAffiliation</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFirstName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasLastName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>employedBy</selector>
	    <xns1:expression>
	      <nonterminal>Organization</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasHomePage</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSurname</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFax</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFirstName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasPhone</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasEmail</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>attendeeAt</selector>
	    <xns1:expression>
	      <nonterminal>ConferenceEvent</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isMemberOf</selector>
	    <xns1:expression>
	      <nonterminal>Conference</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFirstName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasBiography</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasLastName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Workshop_Session</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>hasAssignedPaper</selector>
	    <xns1:expression>
	      <nonterminal>AcceptedPaper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>room</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isAssociatedTo</selector>
	    <xns1:expression>
	      <nonterminal>Slot</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasChair</selector>
	    <xns1:expression>
	      <nonterminal>Chair</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Track</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>has_a_track-workshop-tutorial_topic</selector>
	    <xns1:expression>
	      <nonterminal>Topic</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_part_of_conference_volumes</selector>
	    <xns1:expression>
	      <nonterminal>Conference_volume</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_a_track-workshop-tutorial_chair</selector>
	    <xns1:expression>
	      <nonterminal>Track-workshop_chair</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Invited_Talk</nonterminal>
    <xns1:expression>
      <plus>
	<xns1:expression>
	  <selectable>
	    <selector>presentationOfPaper</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </plus>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Workshop</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Contributed_Talk</nonterminal>
    <xns1:expression>
      <plus>
	<xns1:expression>
	  <selectable>
	    <selector>presentationOfPaper</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </plus>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Demo_Chair</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Tutorial_Chair</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>PC_Chair</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>PC_Member</nonterminal>
    <xns1:expression>
      <nonterminal>SC_Member</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>PC_Member</nonterminal>
    <xns1:expression>
      <nonterminal>Session_Chair</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>PC_Member</nonterminal>
    <xns1:expression>
      <nonterminal>Tutorial_Chair</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>PC_Member</nonterminal>
    <xns1:expression>
      <nonterminal>PC_Chair</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>PC_Member</nonterminal>
    <xns1:expression>
      <nonterminal>Workshop_Chair</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>OC_Member</nonterminal>
    <xns1:expression>
      <nonterminal>OC_Chair</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Programme_Brochure</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>recieved_by</selector>
	    <xns1:expression>
	      <nonterminal>User</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>used_by</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>submited__by</selector>
	    <xns1:expression>
	      <nonterminal>User</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>relatesTo</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>writtenBy</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasUpdatedVersion</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>updatedVersionOf</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Flyer</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>recieved_by</selector>
	    <xns1:expression>
	      <nonterminal>User</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>used_by</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>submited__by</selector>
	    <xns1:expression>
	      <nonterminal>User</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>relatesTo</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>writtenBy</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasUpdatedVersion</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>updatedVersionOf</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Web_Site</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>recieved_by</selector>
	    <xns1:expression>
	      <nonterminal>User</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>used_by</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>submited__by</selector>
	    <xns1:expression>
	      <nonterminal>User</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>relatesTo</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>writtenBy</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasUpdatedVersion</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>updatedVersionOf</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Multi-author_Volume</nonterminal>
    <xns1:expression>
      <nonterminal>Proceedings</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Multi-author_Volume</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>recieved_by</selector>
	    <xns1:expression>
	      <nonterminal>User</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>used_by</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>submited__by</selector>
	    <xns1:expression>
	      <nonterminal>User</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>relatesTo</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>writtenBy</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasUpdatedVersion</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>updatedVersionOf</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Individual_Presentation</nonterminal>
    <xns1:expression>
      <nonterminal>Invited_Talk</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Individual_Presentation</nonterminal>
    <xns1:expression>
      <nonterminal>Contributed_Talk</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Individual_Presentation</nonterminal>
    <xns1:expression>
      <plus>
	<xns1:expression>
	  <selectable>
	    <selector>presentationOfPaper</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </plus>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>OC_Chair</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_Banquet</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Workshop_Chair</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_Proceedings</nonterminal>
    <xns1:expression>
      <plus>
	<xns1:expression>
	  <selectable>
	    <selector>includes</selector>
	    <xns1:expression>
	      <nonterminal>Thing</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </plus>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Session_Chair</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Early-Registered_Participant</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Late-Registered_Participant</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>University</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>scientificallyOrganises</selector>
	    <xns1:expression>
	      <nonterminal>Academic_Institution</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isProviderOf</selector>
	    <xns1:expression>
	      <nonterminal>Sponsorship</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Possible_Reviewer</nonterminal>
    <xns1:expression>
      <nonterminal>PC_Member</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Possible_Reviewer</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>reviewerOfPaper</selector>
	<xns1:expression>
	  <nonterminal>Paper</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Invited_Speaker</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>SC_Member</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Presenter_house</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Building</nonterminal>
    <xns1:expression>
      <nonterminal>Presenter_house</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Building</nonterminal>
    <xns1:expression>
      <nonterminal>Conference_restaurant</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Building</nonterminal>
    <xns1:expression>
      <nonterminal>Conference_building</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Building</nonterminal>
    <xns1:expression>
      <nonterminal>Conference_airport</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Building</nonterminal>
    <xns1:expression>
      <nonterminal>Conference_hotel</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Building</nonterminal>
    <xns1:expression>
      <nonterminal>Sponsor_company_house</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Building</nonterminal>
    <xns1:expression>
      <nonterminal>Presenter_university</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Building</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>Presenter_house</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Conference_restaurant</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Conference_building</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Conference_airport</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Conference_hotel</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Sponsor_company_house</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Presenter_university</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Presenter_state</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Delegate</nonterminal>
    <xns1:expression>
      <nonterminal>One_day_presenter</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Delegate</nonterminal>
    <xns1:expression>
      <nonterminal>Technical_commitee</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Delegate</nonterminal>
    <xns1:expression>
      <nonterminal>Listener</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Delegate</nonterminal>
    <xns1:expression>
      <nonterminal>Session_chair</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Delegate</nonterminal>
    <xns1:expression>
      <nonterminal>Speaker</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Delegate</nonterminal>
    <xns1:expression>
      <nonterminal>Hotel_presenter</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Delegate</nonterminal>
    <xns1:expression>
      <nonterminal>Non_speaker</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Delegate</nonterminal>
    <xns1:expression>
      <nonterminal>IASTED_non_member</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Delegate</nonterminal>
    <xns1:expression>
      <nonterminal>Conference_Hiker</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Delegate</nonterminal>
    <xns1:expression>
      <nonterminal>IASTED_member</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Delegate</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>One_day_presenter</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Technical_commitee</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Listener</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Session_chair</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Speaker</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Hotel_presenter</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Non_speaker</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>IASTED_non_member</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Conference_Hiker</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>IASTED_member</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Presenter_city</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Hotel_registration_form</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Deadline_hotel_reservation</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>done_till</selector>
	<xns1:expression>
	  <nonterminal>date</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Form</nonterminal>
    <xns1:expression>
      <nonterminal>Hotel_registration_form</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Form</nonterminal>
    <xns1:expression>
      <nonterminal>Registration_form</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Form</nonterminal>
    <xns1:expression>
      <nonterminal>Author_information_form</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Form</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>Hotel_registration_form</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Registration_form</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Author_information_form</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Car</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Transport_vehicle</nonterminal>
    <xns1:expression>
      <nonterminal>Car</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Transport_vehicle</nonterminal>
    <xns1:expression>
      <nonterminal>Taxi</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Transport_vehicle</nonterminal>
    <xns1:expression>
      <nonterminal>Shuttle_bus</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Transport_vehicle</nonterminal>
    <xns1:expression>
      <nonterminal>Van</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Transport_vehicle</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>Car</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Taxi</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Shuttle_bus</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Van</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Mailing_list</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>recieved_by</selector>
	    <xns1:expression>
	      <nonterminal>User</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>used_by</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>submited__by</selector>
	    <xns1:expression>
	      <nonterminal>User</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>relatesTo</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>writtenBy</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasUpdatedVersion</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>updatedVersionOf</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Renting</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Activity_before_conference</nonterminal>
    <xns1:expression>
      <nonterminal>Renting</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Activity_before_conference</nonterminal>
    <xns1:expression>
      <nonterminal>Research</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Activity_before_conference</nonterminal>
    <xns1:expression>
      <nonterminal>Refusing_manuscript</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Activity_before_conference</nonterminal>
    <xns1:expression>
      <nonterminal>Accepting_manuscript</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Activity_before_conference</nonterminal>
    <xns1:expression>
      <nonterminal>Receiving_manuscript</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Activity_before_conference</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>Renting</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Research</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Refusing_manuscript</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Accepting_manuscript</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Receiving_manuscript</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Dinner_banquet</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>One_day_presenter</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Social_program</nonterminal>
    <xns1:expression>
      <nonterminal>Dinner_banquet</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>PowerPoint_presentation</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>is_given_by</selector>
	<xns1:expression>
	  <nonterminal>Active_conference_participant</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Presentation</nonterminal>
    <xns1:expression>
      <nonterminal>Invited_talk</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Presentation</nonterminal>
    <xns1:expression>
      <nonterminal>PowerPoint_presentation</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Presentation</nonterminal>
    <xns1:expression>
      <nonterminal>Video_presentation</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Presentation</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>is_given_by</selector>
	<xns1:expression>
	  <nonterminal>Active_conference_participant</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_restaurant</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_city</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_state</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Submissions_deadline</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>done_till</selector>
	<xns1:expression>
	  <nonterminal>date</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Deadline</nonterminal>
    <xns1:expression>
      <nonterminal>Deadline_hotel_reservation</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Deadline</nonterminal>
    <xns1:expression>
      <nonterminal>Submissions_deadline</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Deadline</nonterminal>
    <xns1:expression>
      <nonterminal>Deadline_for_notification_of_acceptance</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Deadline</nonterminal>
    <xns1:expression>
      <nonterminal>Registation_deadline</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Deadline</nonterminal>
    <xns1:expression>
      <nonterminal>Camera_ready_manuscript_deadline</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Deadline</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>done_till</selector>
	<xns1:expression>
	  <nonterminal>date</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Simulating</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Research</nonterminal>
    <xns1:expression>
      <nonterminal>Simulating</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Research</nonterminal>
    <xns1:expression>
      <nonterminal>Modelling</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Research</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>Simulating</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Modelling</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Technic_activity</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_activity</nonterminal>
    <xns1:expression>
      <nonterminal>Social_program</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_activity</nonterminal>
    <xns1:expression>
      <nonterminal>Technic_activity</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_activity</nonterminal>
    <xns1:expression>
      <nonterminal>Registration</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_activity</nonterminal>
    <xns1:expression>
      <nonterminal>Introduction</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_activity</nonterminal>
    <xns1:expression>
      <nonterminal>Welcome_address</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_activity</nonterminal>
    <xns1:expression>
      <nonterminal>Coffee_break</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_activity</nonterminal>
    <xns1:expression>
      <nonterminal>Coctail_reception</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_activity</nonterminal>
    <xns1:expression>
      <nonterminal>Presentation</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_activity</nonterminal>
    <xns1:expression>
      <nonterminal>Lecture</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_activity</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>Social_program</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Technic_activity</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Registration</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Introduction</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Welcome_address</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Coffee_break</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Coctail_reception</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Technical_commitee</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Place</nonterminal>
    <xns1:expression>
      <nonterminal>DiningPlace</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Place</nonterminal>
    <xns1:expression>
      <nonterminal>ConferenceVenuePlace</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Place</nonterminal>
    <xns1:expression>
      <nonterminal>MeetingRoomPlace</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Place</nonterminal>
    <xns1:expression>
      <nonterminal>AccommodationPlace</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Place</nonterminal>
    <xns1:expression>
      <nonterminal>Building</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Place</nonterminal>
    <xns1:expression>
      <nonterminal>Session_room</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Place</nonterminal>
    <xns1:expression>
      <nonterminal>Hotel_room</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Place</nonterminal>
    <xns1:expression>
      <nonterminal>Conference_hall</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Place</nonterminal>
    <xns1:expression>
      <nonterminal>Main_office</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Place</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>isLocationOf</selector>
	    <xns1:expression>
	      <nonterminal>ConferenceEvent</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_equipped_by</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Author_cd_proceedings_included</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>submitPaper</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>writes</selector>
	    <xns1:expression>
	      <nonterminal>Contribution</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>writes_article</selector>
	    <xns1:expression>
	      <nonterminal>article</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>assigns_article_to_conference</selector>
	    <xns1:expression>
	      <nonterminal>article</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasRelatedPaper</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>conflictsWith</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isAuthorOf</selector>
	    <xns1:expression>
	      <nonterminal>ActivitySubmissionForm</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>conducts</selector>
	    <xns1:expression>
	      <nonterminal>Thing</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>submitsPaper</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>writePaper</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>writes_Paper</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Cd_proceening</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Trip_day</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Time</nonterminal>
    <xns1:expression>
      <nonterminal>Deadline</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Time</nonterminal>
    <xns1:expression>
      <nonterminal>Trip_day</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Time</nonterminal>
    <xns1:expression>
      <nonterminal>Conference_days</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Time</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>Deadline</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Trip_day</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Conference_days</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Record_of_attendance</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>recieved_by</selector>
	    <xns1:expression>
	      <nonterminal>User</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>used_by</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>submited__by</selector>
	    <xns1:expression>
	      <nonterminal>User</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>relatesTo</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>writtenBy</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasUpdatedVersion</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>updatedVersionOf</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Listener</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Session_room</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>isLocationOf</selector>
	    <xns1:expression>
	      <nonterminal>ConferenceEvent</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_equipped_by</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Brief_introduction_for_Session_chair</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>recieved_by</selector>
	    <xns1:expression>
	      <nonterminal>User</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>used_by</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>submited__by</selector>
	    <xns1:expression>
	      <nonterminal>User</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>relatesTo</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>writtenBy</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasUpdatedVersion</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>updatedVersionOf</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Session_chair</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Invitation_letter</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>recieved_by</selector>
	    <xns1:expression>
	      <nonterminal>User</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>used_by</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>submited__by</selector>
	    <xns1:expression>
	      <nonterminal>User</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>relatesTo</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>writtenBy</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasUpdatedVersion</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>updatedVersionOf</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Registration_form</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Viza</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>recieved_by</selector>
	    <xns1:expression>
	      <nonterminal>User</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>used_by</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>submited__by</selector>
	    <xns1:expression>
	      <nonterminal>User</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>relatesTo</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>writtenBy</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasUpdatedVersion</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>updatedVersionOf</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_days</nonterminal>
    <xns1:expression>
      <nonterminal>One_conference_day</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_building</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Registration_fee</nonterminal>
    <xns1:expression>
      <nonterminal>Author_attendee_book_registration_fee</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Registration_fee</nonterminal>
    <xns1:expression>
      <nonterminal>Nonmember_registration_fee</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Registration_fee</nonterminal>
    <xns1:expression>
      <nonterminal>Nonauthor_registration_fee</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Registration_fee</nonterminal>
    <xns1:expression>
      <nonterminal>Memeber_registration_fee</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Registration_fee</nonterminal>
    <xns1:expression>
      <nonterminal>Student_registration_fee</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Registration_fee</nonterminal>
    <xns1:expression>
      <nonterminal>Author_attendee_cd_registration_fee</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Registration_fee</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>Author_attendee_book_registration_fee</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Nonmember_registration_fee</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Nonauthor_registration_fee</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Memeber_registration_fee</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Student_registration_fee</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Author_attendee_cd_registration_fee</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Departure</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Activity_after_conference</nonterminal>
    <xns1:expression>
      <nonterminal>Departure</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Activity_after_conference</nonterminal>
    <xns1:expression>
      <nonterminal>Full_day_tour</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Activity_after_conference</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>Departure</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Full_day_tour</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_airport</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Worker_lecturer</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Lecturer</nonterminal>
    <xns1:expression>
      <nonterminal>Worker_lecturer</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Lecturer</nonterminal>
    <xns1:expression>
      <nonterminal>Student_lecturer</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Lecturer</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>Worker_lecturer</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Student_lecturer</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Transparency</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>recieved_by</selector>
	    <xns1:expression>
	      <nonterminal>User</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>used_by</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>submited__by</selector>
	    <xns1:expression>
	      <nonterminal>User</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>relatesTo</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>writtenBy</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasUpdatedVersion</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>updatedVersionOf</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Speaker</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>City</nonterminal>
    <xns1:expression>
      <nonterminal>Presenter_city</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>City</nonterminal>
    <xns1:expression>
      <nonterminal>Conference_city</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>City</nonterminal>
    <xns1:expression>
      <nonterminal>Sponsor_city</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>City</nonterminal>
    <xns1:expression>
      <nonterminal>Trip_city</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>City</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>Presenter_city</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Conference_city</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Sponsor_city</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Trip_city</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Card</nonterminal>
    <xns1:expression>
      <nonterminal>Credit_card</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Item</nonterminal>
    <xns1:expression>
      <nonterminal>Transport_vehicle</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Item</nonterminal>
    <xns1:expression>
      <nonterminal>Card</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Item</nonterminal>
    <xns1:expression>
      <nonterminal>Audiovisual_equipment</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Item</nonterminal>
    <xns1:expression>
      <nonterminal>Publication</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Item</nonterminal>
    <xns1:expression>
      <nonterminal>Document</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Item</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>go_through</selector>
	    <xns1:expression>
	      <nonterminal>Activity</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>is_used_for</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_signed_by</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_made_from</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_sent_after</selector>
	    <xns1:expression>
	      <nonterminal>Time</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_needed_for</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_sent_before</selector>
	    <xns1:expression>
	      <nonterminal>Time</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_prepared_by</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_used_by</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_given_to</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_sent_by</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_writen_by</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Author_attendee_book_registration_fee</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Book_proceeding</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Video_cassette_player</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Audiovisual_equipment</nonterminal>
    <xns1:expression>
      <nonterminal>Video_cassette_player</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Audiovisual_equipment</nonterminal>
    <xns1:expression>
      <nonterminal>LCD_projector</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Audiovisual_equipment</nonterminal>
    <xns1:expression>
      <nonterminal>Computer</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Audiovisual_equipment</nonterminal>
    <xns1:expression>
      <nonterminal>Overhead_projector</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Audiovisual_equipment</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>Video_cassette_player</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>LCD_projector</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Computer</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Overhead_projector</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Video_presentation</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>is_given_by</selector>
	<xns1:expression>
	  <nonterminal>Active_conference_participant</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Hotel_room</nonterminal>
    <xns1:expression>
      <nonterminal>Single_hotel_room</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Hotel_room</nonterminal>
    <xns1:expression>
      <nonterminal>Double_hotel_room</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Hotel_room</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>Single_hotel_room</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Double_hotel_room</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Hotel_presenter</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_hotel</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Money</nonterminal>
    <xns1:expression>
      <nonterminal>Tax</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Money</nonterminal>
    <xns1:expression>
      <nonterminal>Fee</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Money</nonterminal>
    <xns1:expression>
      <nonterminal>Sponzorship</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Money</nonterminal>
    <xns1:expression>
      <nonterminal>Tip</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Money</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>is_paid_with</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_paid_by</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_paid_in</selector>
	    <xns1:expression>
	      <nonterminal>Building</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>is_paid_for</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_amount_of</selector>
	    <xns1:expression>
	      <nonterminal>Money</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>State</nonterminal>
    <xns1:expression>
      <nonterminal>Presenter_state</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>State</nonterminal>
    <xns1:expression>
      <nonterminal>Conference_state</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>State</nonterminal>
    <xns1:expression>
      <nonterminal>Sponsor_state</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>State</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>Presenter_state</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Conference_state</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Sponsor_state</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Introduction</nonterminal>
    <xns1:expression>
      <nonterminal>Introduction_of_speaker</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Welcome_address</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Value_added_tax</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Tax</nonterminal>
    <xns1:expression>
      <nonterminal>Value_added_tax</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Tax</nonterminal>
    <xns1:expression>
      <nonterminal>Departure_tax</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Tax</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>Value_added_tax</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Departure_tax</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Refusing_manuscript</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Final_manuscript</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Accepting_manuscript</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Submission</nonterminal>
    <xns1:expression>
      <nonterminal>Final_manuscript</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Submission</nonterminal>
    <xns1:expression>
      <nonterminal>Initial_manuscipt</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Submission</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>Final_manuscript</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Initial_manuscipt</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Sponsor_city</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Sponsor</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>inverse_of_add</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>execute</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>get</selector>
	    <xns1:expression>
	      <nonterminal>Inforamtion</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>use</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>register</selector>
	    <xns1:expression>
	      <nonterminal>Account</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>modify</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>take_part_in</selector>
	    <xns1:expression>
	      <nonterminal>Event</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>remove</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>add</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>added_by</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasConflictOfInterest</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>email</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>contributes</selector>
	    <xns1:expression>
	      <nonterminal>Conference_document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_an_email</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_the_first_name</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_gender</selector>
	    <xns1:expression>
	      <nonterminal>EEnum</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_the_last_name</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>authorOf</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>prepare</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>occupy</selector>
		<xns1:expression>
		  <nonterminal>Presenter_city</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>is_present_in</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>write</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>obtain</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>send</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>speak_in</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>pay</selector>
	    <xns1:expression>
	      <nonterminal>Money</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>sign</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_present</selector>
	    <xns1:expression>
	      <nonterminal>Time</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>give</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>need</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasMail</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>worksForCompany</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAffiliation</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFirstName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasLastName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>employedBy</selector>
	    <xns1:expression>
	      <nonterminal>Organization</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasHomePage</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSurname</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFax</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFirstName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasPhone</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasEmail</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>attendeeAt</selector>
	    <xns1:expression>
	      <nonterminal>ConferenceEvent</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isMemberOf</selector>
	    <xns1:expression>
	      <nonterminal>Conference</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFirstName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasBiography</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasLastName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Time_zone</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Introduction_of_speaker</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_hall</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>isLocationOf</selector>
	    <xns1:expression>
	      <nonterminal>ConferenceEvent</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_equipped_by</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Plenary_lecture</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>hasAcronym</selector>
	<xns1:expression>
	  <nonterminal>String</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Plenary_lecture_speaker</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>submitPaper</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>writes</selector>
	    <xns1:expression>
	      <nonterminal>Contribution</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>writes_article</selector>
	    <xns1:expression>
	      <nonterminal>article</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>assigns_article_to_conference</selector>
	    <xns1:expression>
	      <nonterminal>article</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasRelatedPaper</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>conflictsWith</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isAuthorOf</selector>
	    <xns1:expression>
	      <nonterminal>ActivitySubmissionForm</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>conducts</selector>
	    <xns1:expression>
	      <nonterminal>Thing</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>submitsPaper</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>writePaper</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>writes_Paper</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>LCD_projector</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Deadline_for_notification_of_acceptance</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>done_till</selector>
	<xns1:expression>
	  <nonterminal>date</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Tutorial_speaker</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>submitPaper</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>writes</selector>
	    <xns1:expression>
	      <nonterminal>Contribution</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>writes_article</selector>
	    <xns1:expression>
	      <nonterminal>article</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>assigns_article_to_conference</selector>
	    <xns1:expression>
	      <nonterminal>article</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasRelatedPaper</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>conflictsWith</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isAuthorOf</selector>
	    <xns1:expression>
	      <nonterminal>ActivitySubmissionForm</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>conducts</selector>
	    <xns1:expression>
	      <nonterminal>Thing</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>submitsPaper</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>writePaper</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>writes_Paper</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Registation_deadline</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>done_till</selector>
	<xns1:expression>
	  <nonterminal>date</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Single_hotel_room</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Non_speaker</nonterminal>
    <xns1:expression>
      <nonterminal>Worker_non_speaker</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Non_speaker</nonterminal>
    <xns1:expression>
      <nonterminal>Student_non_speaker</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Non_speaker</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>Worker_non_speaker</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Student_non_speaker</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Author_information_form</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Nonmember_registration_fee</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>IASTED_non_member</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Hotel_fee</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Fee</nonterminal>
    <xns1:expression>
      <nonterminal>Registration_fee</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Fee</nonterminal>
    <xns1:expression>
      <nonterminal>Hotel_fee</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Fee</nonterminal>
    <xns1:expression>
      <nonterminal>Fee_for_extra_trip</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Fee</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>Registration_fee</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Hotel_fee</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Fee_for_extra_trip</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Publication</nonterminal>
    <xns1:expression>
      <nonterminal>Cd_proceening</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Publication</nonterminal>
    <xns1:expression>
      <nonterminal>Book_proceeding</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Publication</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>Cd_proceening</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Book_proceeding</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Taxi</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Sponsor_state</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Modelling</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Worker_non_speaker</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Nonauthor_registration_fee</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Payment_document</nonterminal>
    <xns1:expression>
      <nonterminal>Cheque</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Payment_document</nonterminal>
    <xns1:expression>
      <nonterminal>Bank_transfer</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Payment_document</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>Cheque</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Bank_transfer</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Camera_ready_manuscript_deadline</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>done_till</selector>
	<xns1:expression>
	  <nonterminal>date</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>One_conference_day</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Fee_for_extra_trip</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Full_day_tour</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_Hiker</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Computer</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>IASTED_member</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Memeber_registration_fee</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Author_book_proceedings_included</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>submitPaper</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>writes</selector>
	    <xns1:expression>
	      <nonterminal>Contribution</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>writes_article</selector>
	    <xns1:expression>
	      <nonterminal>article</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>assigns_article_to_conference</selector>
	    <xns1:expression>
	      <nonterminal>article</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasRelatedPaper</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>conflictsWith</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isAuthorOf</selector>
	    <xns1:expression>
	      <nonterminal>ActivitySubmissionForm</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>conducts</selector>
	    <xns1:expression>
	      <nonterminal>Thing</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>submitsPaper</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>writePaper</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>writes_Paper</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Sponsor_company_house</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Sponzorship</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>is_paid_with</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_paid_by</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_paid_in</selector>
	    <xns1:expression>
	      <nonterminal>Building</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>is_paid_for</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_amount_of</selector>
	    <xns1:expression>
	      <nonterminal>Money</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Student_lecturer</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Trip_city</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Cheque</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Shuttle_bus</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Student_non_speaker</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Student_registration_fee</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Author_attendee_cd_registration_fee</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Tip</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>is_paid_with</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_paid_by</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_paid_in</selector>
	    <xns1:expression>
	      <nonterminal>Building</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>is_paid_for</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_amount_of</selector>
	    <xns1:expression>
	      <nonterminal>Money</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Credit_card</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Van</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Main_office</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>isLocationOf</selector>
	    <xns1:expression>
	      <nonterminal>ConferenceEvent</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_equipped_by</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Presenter_university</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Departure_tax</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Receiving_manuscript</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Double_hotel_room</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Initial_manuscipt</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Coffee_break</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Bank_transfer</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Overhead_projector</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Speaker_lecture</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>hasAssignedPaper</selector>
	    <xns1:expression>
	      <nonterminal>AcceptedPaper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>room</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isAssociatedTo</selector>
	    <xns1:expression>
	      <nonterminal>Slot</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasChair</selector>
	    <xns1:expression>
	      <nonterminal>Chair</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Coctail_reception</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Currency</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>WorkShop</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>has_result</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>sent_by</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_followed_by</selector>
	    <xns1:expression>
	      <nonterminal>Activity</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_monitored_by</selector>
	    <xns1:expression>
	      <nonterminal>human</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_intensity</selector>
	    <xns1:expression>
	      <nonterminal>intensity</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_result</selector>
	    <xns1:expression>
	      <nonterminal>article</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_performed_by</selector>
	    <xns1:expression>
	      <nonterminal>human</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_supervised_by</selector>
	    <xns1:expression>
	      <nonterminal>human</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_held_before</selector>
	    <xns1:expression>
	      <nonterminal>Time</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_held_in</selector>
	    <xns1:expression>
	      <nonterminal>Thing</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_held_after</selector>
	    <xns1:expression>
	      <nonterminal>Time</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_dated_on</selector>
	    <xns1:expression>
	      <nonterminal>dateTime</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasTopic</selector>
	    <xns1:expression>
	      <nonterminal>Topic</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>expectedAttendance</selector>
	    <xns1:expression>
	      <nonterminal>Integer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isPartOf</selector>
	    <xns1:expression>
	      <nonterminal>Conference</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Activity</nonterminal>
    <xns1:expression>
      <nonterminal>Event_Creation</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Activity</nonterminal>
    <xns1:expression>
      <nonterminal>Request</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Activity</nonterminal>
    <xns1:expression>
      <nonterminal>Event_Approval</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Activity</nonterminal>
    <xns1:expression>
      <nonterminal>Registration</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Activity</nonterminal>
    <xns1:expression>
      <nonterminal>paper_assignment</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Activity</nonterminal>
    <xns1:expression>
      <nonterminal>bidding_of_reviewer</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Activity</nonterminal>
    <xns1:expression>
      <nonterminal>managing_of_conference_process</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Activity</nonterminal>
    <xns1:expression>
      <nonterminal>reviewing_proces</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Activity</nonterminal>
    <xns1:expression>
      <nonterminal>notification</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Activity</nonterminal>
    <xns1:expression>
      <nonterminal>submission_process</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Activity</nonterminal>
    <xns1:expression>
      <nonterminal>Activity_before_conference</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Activity</nonterminal>
    <xns1:expression>
      <nonterminal>Conference_activity</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Activity</nonterminal>
    <xns1:expression>
      <nonterminal>Activity_after_conference</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Activity</nonterminal>
    <xns1:expression>
      <nonterminal>WorkShop</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Activity</nonterminal>
    <xns1:expression>
      <nonterminal>Lecture</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Activity</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>has_result</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>sent_by</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_followed_by</selector>
	    <xns1:expression>
	      <nonterminal>Activity</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_monitored_by</selector>
	    <xns1:expression>
	      <nonterminal>human</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_intensity</selector>
	    <xns1:expression>
	      <nonterminal>intensity</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_result</selector>
	    <xns1:expression>
	      <nonterminal>article</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_performed_by</selector>
	    <xns1:expression>
	      <nonterminal>human</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_supervised_by</selector>
	    <xns1:expression>
	      <nonterminal>human</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_held_before</selector>
	    <xns1:expression>
	      <nonterminal>Time</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_held_in</selector>
	    <xns1:expression>
	      <nonterminal>Thing</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_held_after</selector>
	    <xns1:expression>
	      <nonterminal>Time</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_dated_on</selector>
	    <xns1:expression>
	      <nonterminal>dateTime</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasTopic</selector>
	    <xns1:expression>
	      <nonterminal>Topic</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>expectedAttendance</selector>
	    <xns1:expression>
	      <nonterminal>Integer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isPartOf</selector>
	    <xns1:expression>
	      <nonterminal>Conference</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>OrganizingCommittee</nonterminal>
    <xns1:expression>
      <nonterminal>ProgramCoChair</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>OrganizingCommittee</nonterminal>
    <xns1:expression>
      <nonterminal>PublicationsChair</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>OrganizingCommittee</nonterminal>
    <xns1:expression>
      <nonterminal>WorkshopTutorialChair</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>OrganizingCommittee</nonterminal>
    <xns1:expression>
      <nonterminal>RegistrationChair</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>OrganizingCommittee</nonterminal>
    <xns1:expression>
      <nonterminal>StudentAdvocate</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>OrganizingCommittee</nonterminal>
    <xns1:expression>
      <nonterminal>FinanceChair</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>OrganizingCommittee</nonterminal>
    <xns1:expression>
      <nonterminal>PaperSubmissionChair</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>OrganizingCommittee</nonterminal>
    <xns1:expression>
      <nonterminal>PublicityWebChair</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>OrganizingCommittee</nonterminal>
    <xns1:expression>
      <nonterminal>SteeringCommittee</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>OrganizingCommittee</nonterminal>
    <xns1:expression>
      <nonterminal>GeneralCoChair</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>OrganizingCommittee</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>organizes</selector>
	<xns1:expression>
	  <nonterminal>Conference</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>CommitteeMember</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>isMemberOf</selector>
	<xns1:expression>
	  <nonterminal>Conference</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ProgramCoChair</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>organizes</selector>
	<xns1:expression>
	  <nonterminal>Conference</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Organizer</nonterminal>
    <xns1:expression>
      <nonterminal>CommitteeMember</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>PublicationsChair</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>organizes</selector>
	<xns1:expression>
	  <nonterminal>Conference</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>OutsideReferee</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>inverse_of_add</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>execute</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>get</selector>
	    <xns1:expression>
	      <nonterminal>Inforamtion</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>use</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>register</selector>
	    <xns1:expression>
	      <nonterminal>Account</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>modify</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>take_part_in</selector>
	    <xns1:expression>
	      <nonterminal>Event</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>remove</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>add</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>added_by</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasConflictOfInterest</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>email</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>contributes</selector>
	    <xns1:expression>
	      <nonterminal>Conference_document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_an_email</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_the_first_name</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_gender</selector>
	    <xns1:expression>
	      <nonterminal>EEnum</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_the_last_name</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>authorOf</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>prepare</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>occupy</selector>
		<xns1:expression>
		  <nonterminal>Presenter_city</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>is_present_in</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>write</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>obtain</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>send</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>speak_in</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>pay</selector>
	    <xns1:expression>
	      <nonterminal>Money</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>sign</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_present</selector>
	    <xns1:expression>
	      <nonterminal>Time</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>give</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>need</selector>
	    <xns1:expression>
	      <nonterminal>Item</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasMail</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>worksForCompany</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAffiliation</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFirstName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasLastName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>employedBy</selector>
	    <xns1:expression>
	      <nonterminal>Organization</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasHomePage</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasSurname</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFax</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFirstName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasPhone</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasEmail</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>attendeeAt</selector>
	    <xns1:expression>
	      <nonterminal>ConferenceEvent</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isMemberOf</selector>
	    <xns1:expression>
	      <nonterminal>Conference</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasFirstName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasBiography</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasLastName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Lecture</nonterminal>
    <xns1:expression>
      <nonterminal>Plenary_lecture</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Lecture</nonterminal>
    <xns1:expression>
      <nonterminal>QualitatvieLecture</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Lecture</nonterminal>
    <xns1:expression>
      <nonterminal>TraditionalLecture</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Lecture</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>hasAcronym</selector>
	<xns1:expression>
	  <nonterminal>String</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ActivitySubmissionForm</nonterminal>
    <xns1:expression>
      <nonterminal>TutorialProposal</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ActivitySubmissionForm</nonterminal>
    <xns1:expression>
      <nonterminal>WorksopProposal</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ActivitySubmissionForm</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>isSubmittedBy</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAuthor</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>submissionDeadline</selector>
	    <xns1:expression>
	      <nonterminal>dateTime</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>WorkshopTutorialChair</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>organizes</selector>
	<xns1:expression>
	  <nonterminal>Conference</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>DoubleBlindReview</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>isExecutedBy</selector>
	<xns1:expression>
	  <nonterminal>Reviewer</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>TutorialProposal</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>isSubmittedBy</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAuthor</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>submissionDeadline</selector>
	    <xns1:expression>
	      <nonterminal>dateTime</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>RegistrationChair</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>organizes</selector>
	<xns1:expression>
	  <nonterminal>Conference</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>StudentAdvocate</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>organizes</selector>
	<xns1:expression>
	  <nonterminal>Conference</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>FinanceChair</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>organizes</selector>
	<xns1:expression>
	  <nonterminal>Conference</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>QualitatvieLecture</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>hasAcronym</selector>
	<xns1:expression>
	  <nonterminal>String</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>TraditionalLecture</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>hasAcronym</selector>
	<xns1:expression>
	  <nonterminal>String</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>PaperSubmissionChair</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>organizes</selector>
	<xns1:expression>
	  <nonterminal>Conference</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>PublicityWebChair</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>organizes</selector>
	<xns1:expression>
	  <nonterminal>Conference</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>SteeringCommittee</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>organizes</selector>
	<xns1:expression>
	  <nonterminal>Conference</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>GeneralCoChair</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>organizes</selector>
	<xns1:expression>
	  <nonterminal>Conference</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>WorksopProposal</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>isSubmittedBy</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAuthor</selector>
	    <xns1:expression>
	      <nonterminal>Author</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>submissionDeadline</selector>
	    <xns1:expression>
	      <nonterminal>dateTime</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ProgramCommitteeMember</nonterminal>
    <xns1:expression>
      <nonterminal>ProgramCommitteeChair</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ProgramCommitteeMember</nonterminal>
    <xns1:expression>
      <nonterminal>Chair</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ProgramCommitteeMember</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>memberOfProgramCommittee</selector>
	    <xns1:expression>
	      <nonterminal>ProgramCommittee</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>maxPapers</selector>
	    <xns1:expression>
	      <nonterminal>Integer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>addedBy</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isMemberOf</selector>
	    <xns1:expression>
	      <nonterminal>ProgramCommittee</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasPassword</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ContactAuthor</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>submitsAbstract</selector>
	<xns1:expression>
	  <nonterminal>PaperAbstract</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ConferenceProgram</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>isProgramOf</selector>
	    <xns1:expression>
	      <nonterminal>Conference</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>consistsOf</selector>
	    <xns1:expression>
	      <nonterminal>Slot</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>PaperStatus</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>isStatusOf</selector>
	<xns1:expression>
	  <nonterminal>Paper</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Slot</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>date</selector>
	    <xns1:expression>
	      <nonterminal>date</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>endsAt</selector>
	    <xns1:expression>
	      <nonterminal>time</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>beginsAt</selector>
	    <xns1:expression>
	      <nonterminal>time</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>forms</selector>
	    <xns1:expression>
	      <nonterminal>ConferenceProgram</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hosts</selector>
	    <xns1:expression>
	      <nonterminal>Session</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Session</nonterminal>
    <xns1:expression>
      <nonterminal>Conference_Session</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Session</nonterminal>
    <xns1:expression>
      <nonterminal>Regular_Session</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Session</nonterminal>
    <xns1:expression>
      <nonterminal>Poster_Session</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Session</nonterminal>
    <xns1:expression>
      <nonterminal>Demo_Session</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Session</nonterminal>
    <xns1:expression>
      <nonterminal>Workshop_Session</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Session</nonterminal>
    <xns1:expression>
      <nonterminal>Speaker_lecture</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Session</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>hasAssignedPaper</selector>
	    <xns1:expression>
	      <nonterminal>AcceptedPaper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>room</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isAssociatedTo</selector>
	    <xns1:expression>
	      <nonterminal>Slot</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasChair</selector>
	    <xns1:expression>
	      <nonterminal>Chair</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ResearchTopic</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Question</nonterminal>
    <xns1:expression>
      <nonterminal>ReviewQuestion</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Question</nonterminal>
    <xns1:expression>
      <nonterminal>PaperQuestion</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Question</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>ReviewQuestion</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>PaperQuestion</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>PaymentMode</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>OutputDocument</nonterminal>
    <xns1:expression>
      <nonterminal>CD-ROM</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>OutputDocument</nonterminal>
    <xns1:expression>
      <nonterminal>IndexOfAuthors</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>OutputDocument</nonterminal>
    <xns1:expression>
      <nonterminal>ExternalReviewersList</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>OutputDocument</nonterminal>
    <xns1:expression>
      <nonterminal>Program</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>OutputDocument</nonterminal>
    <xns1:expression>
      <nonterminal>PCMembersList</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>OutputDocument</nonterminal>
    <xns1:expression>
      <nonterminal>ListOfAbstracts</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>OutputDocument</nonterminal>
    <xns1:expression>
      <nonterminal>BookletOfAbstracts</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>OutputDocument</nonterminal>
    <xns1:expression>
      <nonterminal>Proceedings</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>OutputDocument</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>isProducedBy</selector>
	<xns1:expression>
	  <nonterminal>Chair</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Document</nonterminal>
    <xns1:expression>
      <nonterminal>Email</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Document</nonterminal>
    <xns1:expression>
      <nonterminal>Template</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Document</nonterminal>
    <xns1:expression>
      <nonterminal>article</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Document</nonterminal>
    <xns1:expression>
      <nonterminal>SlideSet</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Document</nonterminal>
    <xns1:expression>
      <nonterminal>Programme</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Document</nonterminal>
    <xns1:expression>
      <nonterminal>MealMenu</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Document</nonterminal>
    <xns1:expression>
      <nonterminal>Programme_Brochure</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Document</nonterminal>
    <xns1:expression>
      <nonterminal>Flyer</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Document</nonterminal>
    <xns1:expression>
      <nonterminal>Web_Site</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Document</nonterminal>
    <xns1:expression>
      <nonterminal>Multi-author_Volume</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Document</nonterminal>
    <xns1:expression>
      <nonterminal>Form</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Document</nonterminal>
    <xns1:expression>
      <nonterminal>Mailing_list</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Document</nonterminal>
    <xns1:expression>
      <nonterminal>Record_of_attendance</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Document</nonterminal>
    <xns1:expression>
      <nonterminal>Brief_introduction_for_Session_chair</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Document</nonterminal>
    <xns1:expression>
      <nonterminal>Invitation_letter</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Document</nonterminal>
    <xns1:expression>
      <nonterminal>Viza</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Document</nonterminal>
    <xns1:expression>
      <nonterminal>Transparency</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Document</nonterminal>
    <xns1:expression>
      <nonterminal>Submission</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Document</nonterminal>
    <xns1:expression>
      <nonterminal>Payment_document</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Document</nonterminal>
    <xns1:expression>
      <nonterminal>Evaluation</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Document</nonterminal>
    <xns1:expression>
      <nonterminal>PaperAbstract</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Document</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>recieved_by</selector>
	    <xns1:expression>
	      <nonterminal>User</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>used_by</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>submited__by</selector>
	    <xns1:expression>
	      <nonterminal>User</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>relatesTo</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>writtenBy</selector>
	    <xns1:expression>
	      <nonterminal>Person</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasUpdatedVersion</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>updatedVersionOf</selector>
	    <xns1:expression>
	      <nonterminal>Document</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ProgramCommittee</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>hasProgramCommitteeMember</selector>
	    <xns1:expression>
	      <nonterminal>ProgramCommitteeMember</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasMember</selector>
	    <xns1:expression>
	      <nonterminal>ProgramCommitteeMember</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Criterion</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>hasWeight</selector>
	<xns1:expression>
	  <nonterminal>double</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>AcceptedPaper</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>relatedToEvent</selector>
	    <xns1:expression>
	      <nonterminal>PaperPresentation</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isAssignedToSession</selector>
	    <xns1:expression>
	      <nonterminal>Session</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Chair</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>was_a_committee_chair_of</selector>
	    <xns1:expression>
	      <nonterminal>Committee</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>assigns_reviewers_to_article</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>creates_program</selector>
	    <xns1:expression>
	      <nonterminal>program</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>produces</selector>
	    <xns1:expression>
	      <nonterminal>OutputDocument</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>sets</selector>
	    <xns1:expression>
	      <nonterminal>Thing</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>accepts</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>rejects</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>asksForPreference</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isChairOf</selector>
	    <xns1:expression>
	      <nonterminal>Session</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Review</nonterminal>
    <xns1:expression>
      <nonterminal>Meta-Review</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Review</nonterminal>
    <xns1:expression>
      <nonterminal>Positive_Review</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Review</nonterminal>
    <xns1:expression>
      <nonterminal>Negative_Review</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Review</nonterminal>
    <xns1:expression>
      <nonterminal>Neutral_Review</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Review</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>writtenBy</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>reviews</selector>
	    <xns1:expression>
	      <nonterminal>Reviewed_contribution</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>gives_classification</selector>
	    <xns1:expression>
	      <nonterminal>classification</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>is_created_in</selector>
	    <xns1:expression>
	      <nonterminal>Activity</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>review_written_by</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>reviewOfPaper</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>reviewWrittenBy</selector>
	    <xns1:expression>
	      <nonterminal>Possible_Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>containsEvaluation</selector>
	    <xns1:expression>
	      <nonterminal>Evaluation</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>rates</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isWritenBy</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ConferenceAttendant</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>mustPay</selector>
	    <xns1:expression>
	      <nonterminal>Fee</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasAdress</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>paid</selector>
	    <xns1:expression>
	      <nonterminal>Boolean</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasPhone</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Evaluation</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>isContainedIn</selector>
	<xns1:expression>
	  <nonterminal>Review</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>PaperAbstract</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>isAbstractOf</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>abstractIsSubmittedBy</selector>
	    <xns1:expression>
	      <nonterminal>ContactAuthor</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ReviewQuestion</nonterminal>
    <xns1:expression>
      <nonterminal>TextualReviewQuestion</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ReviewQuestion</nonterminal>
    <xns1:expression>
      <nonterminal>NumericalReviewQuestion</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ReviewQuestion</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>TextualReviewQuestion</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>NumericalReviewQuestion</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>PaperQuestion</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>CD-ROM</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>isProducedBy</selector>
	<xns1:expression>
	  <nonterminal>Chair</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>IndexOfAuthors</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>isProducedBy</selector>
	<xns1:expression>
	  <nonterminal>Chair</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ExternalReviewersList</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>isProducedBy</selector>
	<xns1:expression>
	  <nonterminal>Chair</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Proceedings</nonterminal>
    <xns1:expression>
      <nonterminal>Conference_Proceedings</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Proceedings</nonterminal>
    <xns1:expression>
      <plus>
	<xns1:expression>
	  <selectable>
	    <selector>includes</selector>
	    <xns1:expression>
	      <nonterminal>Thing</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </plus>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Program</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>isProducedBy</selector>
	<xns1:expression>
	  <nonterminal>Chair</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>PCMembersList</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>isProducedBy</selector>
	<xns1:expression>
	  <nonterminal>Chair</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>ListOfAbstracts</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>isProducedBy</selector>
	<xns1:expression>
	  <nonterminal>Chair</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>BookletOfAbstracts</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>isProducedBy</selector>
	<xns1:expression>
	  <nonterminal>Chair</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>RFC</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Topics</nonterminal>
    <xns1:expression>
      <nonterminal>RFC</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Topics</nonterminal>
    <xns1:expression>
      <nonterminal>Classic_Papers</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Topics</nonterminal>
    <xns1:expression>
      <nonterminal>Networking</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Topics</nonterminal>
    <xns1:expression>
      <nonterminal>Humour</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Topics</nonterminal>
    <xns1:expression>
      <nonterminal>Programming</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Topics</nonterminal>
    <xns1:expression>
      <nonterminal>Computer_Science</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Topics</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>RFC</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Classic_Papers</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Networking</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Humour</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Programming</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Computer_Science</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Classic_Papers</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Networking</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Humour</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Programming</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Computer_Science</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Format</nonterminal>
    <xns1:expression>
      <nonterminal>Adobe_PDF</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Format</nonterminal>
    <xns1:expression>
      <nonterminal>MS_Word</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Format</nonterminal>
    <xns1:expression>
      <nonterminal>Corel_Word_Perfect</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Format</nonterminal>
    <xns1:expression>
      <nonterminal>HTML</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Format</nonterminal>
    <xns1:expression>
      <nonterminal>PostScript</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Format</nonterminal>
    <xns1:expression>
      <nonterminal>RTF</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Format</nonterminal>
    <xns1:expression>
      <nonterminal>Text</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Format</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>Adobe_PDF</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>MS_Word</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Corel_Word_Perfect</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>HTML</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>PostScript</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>RTF</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Text</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Value_Partition</nonterminal>
    <xns1:expression>
      <nonterminal>Topics</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Value_Partition</nonterminal>
    <xns1:expression>
      <nonterminal>Format</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Value_Partition</nonterminal>
    <xns1:expression>
      <nonterminal>Long_bool</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Value_Partition</nonterminal>
    <xns1:expression>
      <nonterminal>Review_Values</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Value_Partition</nonterminal>
    <xns1:expression>
      <nonterminal>Result_of_Advocate</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Value_Partition</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>Topics</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Format</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Long_bool</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Review_Values</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Result_of_Advocate</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Adobe_PDF</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>MS_Word</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Corel_Word_Perfect</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>HTML</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>PostScript</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>RTF</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Text</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>High</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Reviewer_Famliliarity</nonterminal>
    <xns1:expression>
      <nonterminal>High</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Reviewer_Famliliarity</nonterminal>
    <xns1:expression>
      <nonterminal>Low</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Reviewer_Famliliarity</nonterminal>
    <xns1:expression>
      <nonterminal>Moderate</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Reviewer_Famliliarity</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>High</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Low</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Moderate</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Low</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Moderate</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Marginal_Tend_to_Reject</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Reccommendation</nonterminal>
    <xns1:expression>
      <nonterminal>Marginal_Tend_to_Reject</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Reccommendation</nonterminal>
    <xns1:expression>
      <nonterminal>Marginal_Tend_to_Accept</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Reccommendation</nonterminal>
    <xns1:expression>
      <nonterminal>Portable_Reject</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Reccommendation</nonterminal>
    <xns1:expression>
      <nonterminal>Must_Accept</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Reccommendation</nonterminal>
    <xns1:expression>
      <nonterminal>Clear_Reject</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Reccommendation</nonterminal>
    <xns1:expression>
      <nonterminal>Clear_Accept</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Reccommendation</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>Marginal_Tend_to_Reject</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Marginal_Tend_to_Accept</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Portable_Reject</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Must_Accept</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Clear_Reject</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Clear_Accept</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Marginal_Tend_to_Accept</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Portable_Reject</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Must_Accept</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Clear_Reject</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Clear_Accept</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Program_chair</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>made_program</selector>
	<xns1:expression>
	  <nonterminal>Conference_Program</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Conference_Program</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>Program_made_by</selector>
	    <xns1:expression>
	      <nonterminal>Program_chair</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>planned_papers</selector>
	    <xns1:expression>
	      <nonterminal>Planed_Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Program_Committee</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Domain_Topic</nonterminal>
    <xns1:expression>
      <nonterminal>Conference_Program</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Domain_Topic</nonterminal>
    <xns1:expression>
      <nonterminal>Paper_Review</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Domain_Topic</nonterminal>
    <xns1:expression>
      <nonterminal>Committees</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Domain_Topic</nonterminal>
    <xns1:expression>
      <nonterminal>Paper_File</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Domain_Topic</nonterminal>
    <xns1:expression>
      <nonterminal>People</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Domain_Topic</nonterminal>
    <xns1:expression>
      <nonterminal>Paper</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Domain_Topic</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>Conference_Program</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Paper_Review</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Committees</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Paper_File</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>People</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Planed_Paper</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>is_planned_in</selector>
	<xns1:expression>
	  <nonterminal>Conference_Program</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Valuable_Confirmation_of_Present_Knowledge</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Other</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Not_Much</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>New_Information</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>New_Perspective_Issue_Problem_Solving</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Clarity_to_Present_Understanding</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Overall_Value</nonterminal>
    <xns1:expression>
      <nonterminal>Valuable_Confirmation_of_Present_Knowledge</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Overall_Value</nonterminal>
    <xns1:expression>
      <nonterminal>Other</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Overall_Value</nonterminal>
    <xns1:expression>
      <nonterminal>Not_Much</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Overall_Value</nonterminal>
    <xns1:expression>
      <nonterminal>New_Information</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Overall_Value</nonterminal>
    <xns1:expression>
      <nonterminal>New_Perspective_Issue_Problem_Solving</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Overall_Value</nonterminal>
    <xns1:expression>
      <nonterminal>Clarity_to_Present_Understanding</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Overall_Value</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>Valuable_Confirmation_of_Present_Knowledge</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Other</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Not_Much</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>New_Information</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>New_Perspective_Issue_Problem_Solving</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Clarity_to_Present_Understanding</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Tends_Towards_Theoretical</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Paper_Categorization</nonterminal>
    <xns1:expression>
      <nonterminal>Tends_Towards_Theoretical</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Paper_Categorization</nonterminal>
    <xns1:expression>
      <nonterminal>Tends_Towards_Practical</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Paper_Categorization</nonterminal>
    <xns1:expression>
      <nonterminal>Balanced_Theory_and_Practice</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Paper_Categorization</nonterminal>
    <xns1:expression>
      <nonterminal>Highly_Theoretical</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Paper_Categorization</nonterminal>
    <xns1:expression>
      <nonterminal>Highly_Practical</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Paper_Categorization</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>Tends_Towards_Theoretical</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Tends_Towards_Practical</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Balanced_Theory_and_Practice</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Highly_Theoretical</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Highly_Practical</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Tends_Towards_Practical</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Balanced_Theory_and_Practice</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Highly_Theoretical</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Highly_Practical</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Reviewed_Paper</nonterminal>
    <xns1:expression>
      <nonterminal>Planed_Paper</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Paper_Review</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>is_Candidate_for_Award</selector>
	    <xns1:expression>
	      <nonterminal>Long_bool</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>appropriate_length</selector>
	    <xns1:expression>
	      <nonterminal>Long_bool</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_Categorization</selector>
	    <xns1:expression>
	      <nonterminal>Paper_Categorization</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_Overall</selector>
	    <xns1:expression>
	      <nonterminal>Overall_Value</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_Reccommendation</selector>
	    <xns1:expression>
	      <nonterminal>Reccommendation</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Review_made_by</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Comments_for_Author</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Comments_for_Program_Committee</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Long_bool</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Author</nonterminal>
    <xns1:expression>
      <nonterminal>AuthorNotReviewer</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Author</nonterminal>
    <xns1:expression>
      <nonterminal>Co-author</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Author</nonterminal>
    <xns1:expression>
      <nonterminal>Corresponding_Author</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Author</nonterminal>
    <xns1:expression>
      <nonterminal>Author_cd_proceedings_included</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Author</nonterminal>
    <xns1:expression>
      <nonterminal>Lecturer</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Author</nonterminal>
    <xns1:expression>
      <nonterminal>Plenary_lecture_speaker</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Author</nonterminal>
    <xns1:expression>
      <nonterminal>Tutorial_speaker</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Author</nonterminal>
    <xns1:expression>
      <nonterminal>Author_book_proceedings_included</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Author</nonterminal>
    <xns1:expression>
      <nonterminal>ContactAuthor</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Author</nonterminal>
    <xns1:expression>
      <nonterminal>Contact_Author</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Author</nonterminal>
    <xns1:expression>
      <nonterminal>Presenter</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Author</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>submitPaper</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>writes</selector>
	    <xns1:expression>
	      <nonterminal>Contribution</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>writes_article</selector>
	    <xns1:expression>
	      <nonterminal>article</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>assigns_article_to_conference</selector>
	    <xns1:expression>
	      <nonterminal>article</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasRelatedPaper</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>conflictsWith</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>isAuthorOf</selector>
	    <xns1:expression>
	      <nonterminal>ActivitySubmissionForm</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>conducts</selector>
	    <xns1:expression>
	      <nonterminal>Thing</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>submitsPaper</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>writePaper</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>writes_Paper</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Review_Values</nonterminal>
    <xns1:expression>
      <nonterminal>Reviewer_Famliliarity</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Review_Values</nonterminal>
    <xns1:expression>
      <nonterminal>Reccommendation</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Review_Values</nonterminal>
    <xns1:expression>
      <nonterminal>Overall_Value</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Review_Values</nonterminal>
    <xns1:expression>
      <nonterminal>Paper_Categorization</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Review_Values</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>Reviewer_Famliliarity</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Reccommendation</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Overall_Value</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Paper_Categorization</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Review_Committee</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Committees</nonterminal>
    <xns1:expression>
      <nonterminal>Program_Committee</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Committees</nonterminal>
    <xns1:expression>
      <nonterminal>Review_Committee</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Committees</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <nonterminal>Program_Committee</nonterminal>
	</xns1:expression>
	<xns1:expression>
	  <nonterminal>Review_Committee</nonterminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Reviewer</nonterminal>
    <xns1:expression>
      <nonterminal>Meta-Reviewer</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Reviewer</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>assignedByAdministrator</selector>
	    <xns1:expression>
	      <nonterminal>Administrator</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>adjustBid</selector>
	    <xns1:expression>
	      <nonterminal>Bid</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>readPaper</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasBeenAssigned</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>assignExternalReviewer</selector>
	    <xns1:expression>
	      <nonterminal>ExternalReviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>invites_co-reviewers</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>invited_by</selector>
	    <xns1:expression>
	      <nonterminal>Reviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <plus>
	    <xns1:expression>
	      <selectable>
		<selector>has_a_review_reference_or_expertise</selector>
		<xns1:expression>
		  <nonterminal>Thing</nonterminal>
		</xns1:expression>
	      </selectable>
	    </xns1:expression>
	  </plus>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasReviewHistory</selector>
	    <xns1:expression>
	      <nonterminal>PersonalReviewHistory</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>executes</selector>
	    <xns1:expression>
	      <nonterminal>DoubleBlindReview</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>cooperates</selector>
	    <xns1:expression>
	      <nonterminal>ExternalReviewer</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>IsAssignedTo</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasConflictedPaper</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasPreferredPaper</selector>
	    <xns1:expression>
	      <nonterminal>Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>hasPreferredTopic</selector>
	    <xns1:expression>
	      <nonterminal>ResearchTopic</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>writeReview</selector>
	    <xns1:expression>
	      <nonterminal>Review</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>has_made_review</selector>
	    <xns1:expression>
	      <nonterminal>Paper_Review</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>UserName</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Comments_to_Chair</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Other_Areas</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Paper_File</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>is_Type</selector>
	<xns1:expression>
	  <nonterminal>Format</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Advocate</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>will_advocate</selector>
	<xns1:expression>
	  <nonterminal>Advocated_Paper</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Advocated_Paper</nonterminal>
    <xns1:expression>
      <selectable>
	<selector>to_advocate_by</selector>
	<xns1:expression>
	  <nonterminal>Advocate</nonterminal>
	</xns1:expression>
      </selectable>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Contact_Author</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>has_sent</selector>
	    <xns1:expression>
	      <nonterminal>Submitted_Paper</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Alternate_Email</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Result_of_Advocate</nonterminal>
    <xns1:expression>
      <epsilon/>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>People</nonterminal>
    <xns1:expression>
      <nonterminal>Author</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>People</nonterminal>
    <xns1:expression>
      <nonterminal>Member</nonterminal>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>People</nonterminal>
    <xns1:expression>
      <sequence>
	<xns1:expression>
	  <selectable>
	    <selector>Surname</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Name</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Country</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>E-mail</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Organisation</selector>
	    <xns1:expression>
	      <nonterminal>String</nonterminal>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </sequence>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>EEnum</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <selectable>
	    <selector>Yes</selector>
	    <xns1:expression>
	      <epsilon/>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>No</selector>
	    <xns1:expression>
	      <epsilon/>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Accept</selector>
	    <xns1:expression>
	      <epsilon/>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Reject</selector>
	    <xns1:expression>
	      <epsilon/>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Unsure</selector>
	    <xns1:expression>
	      <epsilon/>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>male</selector>
	    <xns1:expression>
	      <epsilon/>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>female</selector>
	    <xns1:expression>
	      <epsilon/>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>high</selector>
	    <xns1:expression>
	      <epsilon/>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>medium</selector>
	    <xns1:expression>
	      <epsilon/>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>low</selector>
	    <xns1:expression>
	      <epsilon/>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>very high</selector>
	    <xns1:expression>
	      <epsilon/>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Compilers</selector>
	    <xns1:expression>
	      <epsilon/>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Microarchitecture</selector>
	    <xns1:expression>
	      <epsilon/>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>Systems</selector>
	    <xns1:expression>
	      <epsilon/>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
	<xns1:expression>
	  <selectable>
	    <selector>ForwardLookingIdea</selector>
	    <xns1:expression>
	      <epsilon/>
	    </xns1:expression>
	  </selectable>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Boolean</nonterminal>
    <xns1:expression>
      <choice>
	<xns1:expression>
	  <terminal>true</terminal>
	</xns1:expression>
	<xns1:expression>
	  <terminal>false</terminal>
	</xns1:expression>
      </choice>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>Integer</nonterminal>
    <xns1:expression>
      <value>int</value>
    </xns1:expression>
  </xns1:production>
  <xns1:production>
    <nonterminal>String</nonterminal>
    <xns1:expression>
      <value>string</value>
    </xns1:expression>
  </xns1:production>
</xns1:grammar>