the semantic role of the animate entity that instigates or causes the happening denoted by the verb in the clause | an assistant with power to act when his superior is absent |
an active and efficient cause; capable of producing a certain effect | someone authorized to exercise the powers of sheriff in emergencies |
a businessman who buys or sells for another in exchange for a commission | a person appointed to represent or act on behalf of others |
a representative who acts on behalf of other persons or organizations | a member of the lower chamber of a legislative assembly (such as in France) |
any agent or representative of a federal agency or bureau | |
a substance that exerts some force or effect | |