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

Guessing-game dialogue about one of the objects:
q: is it one of those gray things?
a: No
q: is it one of the wooden frames?
a: No
q: is it a gray panel?
a: No
q: is it the floor?
a: No
q: is it a wc?
a: N/A
q: is it an urinal?
a: Yes
q: Is it the first one counting from the bottom of the picture?
a: No
q: the second one?
a: No
q: the third one?
a: Yes