Objects in the image:
category: backpack
category: bed
category: backpack
category: bottle
category: bed
category: bed
category: backpack
category: book

Guessing-game dialogue about one of the objects:
q: is it on a bed?
a: No
q: is it on a nightstand?
a: No
q: is it gray?
a: Yes
q: is it the backpack?
a: Yes