... knowledge. Definite noun phrases that do not need to be resolved because they are understood through world knowledge can represent a significant por- tion of the existential noun phrases in a text. ... cohesive relationship between the noun phrases, because they both completely specify independently, we consider them to be non-anaphoric. Definite Noun Phrases - Referential - Existential ... involves finding antecedents for anaphoric discourse entities, such as definite noun phrases. But many definite noun phrases are not anaphoric because their meaning can be un- derstood from general...