  Kaplan extends his theory of content to linguistic expressions in general, both simple and complex. On his view, the content of a predicate, with respect to a context, is a property or relation. The content of a sentence, with respect to a context, is a structured proposition, that is, a proposition with a constituent structure whose ultimate constituents are individual, properties, and relations. (See the entry on   structured propositions.)  The content of a sentence \(S\) with respect to a context \(c\) has, as its ultimate constituents, the contents of (roughly) the words in \(S\) with respect to \(c\).