 It seems plausible that some non-language-using animals have propositional attitudes or at least that some attitude ascribing sentences about non-language-using animals are true. For example, it seems that the dog wants to go out when she scratches at the door and that the cat believes food is on its way when she hears the can being opened and comes rushing in to eat. But it seems implausible to analyze these cases in terms of these creatures being related to sentences, as nonhuman animals almost certainly do not believe true sentences.