The 'place of the direct object' is introduced to distinguish it from the PLACE element, which is the place of the subject. In "I put a ring on your finger", on your finger is the place of the direct object, or to be more precise, the place the subject puts the direct object in (or on, in this case).
|She just left her keys in the car.
|He has taken his little sister to school this morning.
||in een aparte afvalbak
|We have to put empty batteries in a separate waste container.