Objects in the image:
category: car
category: person
category: car
category: person
category: bus
category: bus

Guessing-game dialogue about one of the objects:
q: Is it a bus?
a: No
q: is it a building?
a: No
q: is it in the background?
a: Yes
q: is it a person?
a: No
q: is it a car?
a: Yes