 There are also topics that fall on the borderline between philosophy of language and philosophy of linguistics: of “linguistic relativity” (see the supplement on the linguistic relativity hypothesis in the Summer 2015 archived version of the entry on  relativism),  language vs.  idiolect,  speech acts (including the distinction between locutionary, illocutionary, and perlocutionary acts), the language of thought, implicature, and the semantics of mental states (see the entries on  analysis,  semantic compositionality,  mental representation,  pragmatics, and  defaults in semantics and pragmatics).  In these cases it is often the kind of answer given and not the inherent nature of the topic itself that determines the classification. Topics that we consider to be more in the philosophy of language than the philosophy of linguistics include intensional contexts, direct reference, and empty names (see the entries on  propositional attitude reports,  intensional logic,  rigid designators,  reference, and  descriptions).