Objects in the image:
category: person
category: person
category: car
category: person
category: backpack
category: bicycle
category: bus
category: truck

Guessing-game dialogue about one of the objects:
q: is it a human?
a: No
q: is it a blue bus?
a: No
q: is it a bicycle?
a: No
q: is it the white truck?
a: No
q: is it the red post box?
a: No
q: is it the backpack?
a: Yes