When someone comes to the front door and passes the garage motion sensor, the light in the living room that gets turned on in response lets me know that someone is on the way up even before they ring the doorbell.
(someone; comes; to the front door) (the living room; gets; turned on in response) (the living room; gets turned on; L:in response)
someone the living room the living room
comes gets gets turned on
to the front door
turned on in response
L:in response