. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . "This is the person who produces a Message. Typically, it is expressed in this frame as a PP-complement headed by from: \nThe students heard from Pat that class was canceled."^^ . . . . . . . . . . . . . . . . . . . . . . . . . . . . "Peripheral"^^ . . . . . . . . . . . . . "Speaker"^^ . . . . . . . . . . . . . . . . . . . . . . . . .