controller

The great controller of our fate / Deigned to be man, and lived in low estate.

Nothing more can be squeezed out of the motive power unit once the master controller has been moved to full on.

I'm collecting player's names for a school project. You know, players just like you! That's right, you--the one holding the controller. Would you register your name, please?

The choice of controller is determined by the matrix verb. If, as in (30b) and (3la), the main verb does not subcategorize for an OBJ, then the controller is the matrix SUBJ. In this case the complement clause is interpreted as having the same subject as the main clause. If the main verb does take an OBJ, the controller is the matrix patient.