 Crimmins and Perry argue that propositional attitude reports involve “unarticulated constituents” that concern how the subject of the report conceives of the proposition that the report alleges that she has an attitude towards. According to Crimmins and Perry, a typical utterance of (1) expresses a truth while a typical utterance of (4) expresses a falsehood. Both attributions, they claim, say of Lois that she believes the singular proposition about Superman to the effect that he is strong. But the first involves implicit reference to Lois’s “Superman-y” way of thinking of Superman and the second to Lois’s “Clark Kent-y” way of thinking of Superman. Because Lois believes that singular proposition in the first way and not the second, the two sentences will typically express different propositions that can diverge in truth-value.