If a robot was near an item of trash or a wastebasket, it could signal its intent to pick up or throw away trash and be credited for the pick up or drop off at a slight penalty.
(a robot; was; near an item of trash or a wastebasket) (it; could signal; its intent to pick up or throw away trash and be credited for the pick up or drop off at a slight penalty)
a robot it
was could signal
near an item of trash or a wastebasket
its intent to pick up or throw away trash and be credited for the pick up or drop off at a slight penalty