_:b17346955 . "agent" . . _:b17346954 . _:b17346955 . . _:b17346953 . _:b17346953 _:b17346954 . _:b17346953 . _:b17346954 _:b17346955 . "The direct performer or driver of the action (animate or inanimate). e.g. *John* wrote a book." .