schwarzschild points out weaknesses in selkirk’s ability to predict accent placement based on facts about the discourse. selkirk’s theory says nothing about how accentuation arises in sentences with entirely old information. she does not fully articulate the notion of discourse status and its relation to accent marking. schwarzschild differs from selkirk in that he develops a more robust model of discourse status. discourse status is determined via the entailments of the context. this is achieved through the definition in (16):