Generating referring expressions with a unification grammar
Richard Power · 1999
A simple formalism is proposed to represent the contexts in which pronouns, definite/indefinite descriptions, and ordinal descriptions (e.g.'the second book') can be used, and the way in which these expressions change the context.It is shown that referring expressions can be generated by a unification grammar provided that some phrase-structure rules are specially tailored to express entities in the current knowledge base.