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

Guessing-game dialogue about one of the objects:
q: Is it a person?
a: No
q: Is it a sign?
a: No
q: Is it attached to the ground?
a: No
q: Is it a fence?
a: No
q: Is it a tree?
a: No
q: Is it on the person?
a: Yes
q: Is it a backpack?
a: Yes