  Bach (2005) says that the only indexicals that have contents with respect to contexts are the pure indexicals, such as ‘I’ and ‘today’. True demonstratives, such as ‘she’ and ‘that’, have no content in any context, and so the contents (in contexts) of sentences that contain them are propositional radicals (incomplete structured propositions). However, a speaker who utters such a sentence typically asserts a full proposition that completes the propositional radical that the sentence semantically expresses. (In this paragraph, and in most of the rest of section 4, we use ‘belief’ for events or states of believing propositions, rather than for propositions that are believed. We also use ‘desire’, ‘intention’, and ‘attitude’ similarly.) 