Objects in the image:
category: sink
category: sink
category: toilet

Guessing-game dialogue about one of the objects:
q: is it on the sink?
a: No
q: is it on the white wall?
a: No
q: is it on the pink wall?
a: No
q: is it on the floor?
a: No
q: is it the ceiling light?
a: No
q: is it the vent on ceiling?
a: No
q: is it the sink?
a: Yes
q: the bowl of the sink?
a: Yes