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

Guessing-game dialogue about one of the objects:
q: a towel?
a: No
q: the sink?
a: No
q: a bottle?
a: No
q: Is it near the lavabo?
a: No
q: in the shower?
a: No
q: On the toilet?
a: Yes
q: paper ??
a: No
q: the toilet?
a: Yes