Objects in the image:
category: backpack
category: person
category: bicycle
category: bottle

Guessing-game dialogue about one of the objects:
q: is it human?
a: No
q: is it on the man?
a: No
q: is it tall?
a: No
q: is it on the ground?
a: No
q: is the man on it?
a: No
q: is it on the bike?
a: Yes
q: is it part of the bike?
a: No