Objects in the image:
category: backpack
category: person
category: chair
category: person
category: person
category: chair
category: person
category: truck
category: person

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: is it a piece of equipment?
a: No
q: is it the van?
a: No
q: is it a chair?
a: No
q: is it on a person?
a: Yes
q: is it the girls backpack?
a: Yes