 In dependently of these questions, functionalists need to say more(outright or not) about what makes a state a particular belief (outright or not) or desire, for example, the belief — or desire — that it will snow tomorrow. Most functional theories describe such states as different relations (or “attitudes”) toward the same state of affairs or proposition (and to describe the belief that it will snow tomorrow and the belief that it will rain tomorrow as the same attitude toward different propositions). This permits differences and similarities in the contents of intentional states to be construed as differences and similarities in the propositions to which these states are related. But what makes a mental state a relation to, or attitude toward, some proposition P? And can these relations be captured solely by appeal to the functional roles of the states in question?