Attributes

Attributes for generic tags:

token
@form = surface form (the, 京都)
@pos = POS tag (DT, 名詞)
@lemma = canonical or base (dictionary) form
dependency = a dependency arc between two tokens
@head = id of a head element (usually token) in the sentence (ROOT for a sentence root token)
@dependent = id of a dependent element
@deprel = relation label
span = a span in a constituent tree
@type = "preterminal" or "nonterminal" (or "empty")? (distinguish the meaning of child id)
@symbol = nonterminal symbol of the span
@children = sequence of ids of children from left to right (id of the token if @type="preterminal"?)