. . . . . . . . . . . . . . . . . . . . . . . "An Agent makes a particular facial expression, generally in response to some Internal_cause (generally an emotional state). Sometimes the Body_part involved in the expression is mentioned in lieu of the Agent."^^ . . . . . . . . . . . . . . . . . . . . . . . . . . . "frame"^^ . .