Full Idea
Three views of the semantics of propositional attitudes: they are relations between agents and propositions ('propositional' view); relations between individuals and meanings (Fregean); or relations of individuals and sentences/utterances ('sentential').
Gist of Idea
Propositional attitudes relate agents to either propositions, or meanings, or sentence/utterances
Source
Ofra Magidor (Category Mistakes [2013], 3.4)
Book Reference
Magidor,Ofra: 'Category Mistakes' [OUP 2013], p.63
A Reaction
I am a propositionalist on this one. Meanings are too vague, and sentences are too linguistic.