Added instruction to discourage potentially offensive scenes.

site/abstract_scenes_v002.html

@@ -62,6 +62,7 @@ <h2 style="color:black; margin:0 0 0 0;">Help Us Create Clipart Illustrations!
                         <p>
                         Please create an illustration of a <b>realistic</b> scene from the clipart below. 
                         If you create unrealistic scenes, <font color='red'><b>your work will be rejected</b></font>.<br />
+                        Also, please  <font color='red'><b>do not create potentially offensive (e.g., sexually suggestive) scenes</b></font>.<br />
                         </p>
                         <p>
                         <!--Please use at least <span id="minNumClipart">6 pieces</span> and