Objects in the image:
category: backpack
category: person
category: car
category: truck
category: car
category: person
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 vehicle?
a: Yes
q: is it the red fire truck?
a: No
q: is it the blue mini van first from the left?
a: No
q: is it the vehicle next to it?
a: Yes