Objects in the image:
category: backpack
category: fire hydrant
category: person

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: is a person carrying it?
a: Yes
q: is the man on the sidewalk carrying it?
a: Yes
q: is he carrying it in his hand?
a: No
q: is it his blue backpack?
a: Yes