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Generating Discourse Entities

• Discourse entities are generated for each noun phrase.

• In many cases, there will be constraints on the entities:

  indefinite noun phrases	creates new DE
  proper names	describe some object often already in KB
  definite noun phrases and pronouns	refer to objects previously mentioned or known, often DE in local context
  complex NP like John and Mary	evokes a set consisting of all the conjuncts