申論題

2. All comprehensible discourse (narratives, natural dialogues, etc.) is a structured entity which contains a coherent, and thereby interpretable structure of referential expressions. These traverse the text as a network of referential chains. Many entities (individuals, objects, abstract notions) referred to in a text are newly introduced at some point and then taken up again, forming a referential chain.... While referential chains describe a property of text structure, topics describe a property of common ground (CG) management and bring in the speaker/hearer perspective, which is particularly important to dialogue.