Objects in the image:
category: person
category: person
category: backpack
category: elephant
category: person
category: bench

Guessing-game dialogue about one of the objects:
q: is it person?
a: No
q: is it elephant?
a: No
q: is it person using it?
a: Yes
q: is it person wearing it?
a: Yes
q: is it backpack?
a: Yes
q: is it center one backpack?
a: Yes