 If there is no present king of France, then an utterance containing such an expression is somehow defective. It is as if I looked into my desk drawer, not allowing you to see what I was looking at, and said ‘that is a fine green one.’ Strawson held that utterances like these do not entail the existence of a fine green one or the present King of France, but rather presuppose their existence. If the expressions fail to refer, then there is a presupposition failure and the utterance fails to have a determinate truth value. (Notice that this sort of failure is not supposed to undermine the meaningfulness of the sentences that we utter; for Strawson, sentences are meaningful in and of themselves, independently of the utterance situation. Utterances of meaningful sentences may be true or false or, if here is a presupposition failure, they may be neither.)