 The analysis of descriptions has been extended from canonical examples of descriptions (expressions of the form ‘the F’ and ‘an F’) to expressions that don’t have this surface form. As we noted in section 3, one of the key motivations for Russell’s theory of descriptions was the idea that it could ameliorate the problem of non-denoting expressions—expressions like ‘the golden mountain’, and ‘the present king of France’. But the account has been extended to other constructions as well, including proper names, pronouns, and temporal anaphors, all with mixed results.