Objects in the image:
category: car
category: car
category: traffic light
category: person
category: truck
category: person
category: traffic light
category: person
category: person
category: truck

Guessing-game dialogue about one of the objects:
q: is it a vehicle?
a: Yes
q: is it the firetruck?
a: No
q: is it a white car?
a: No
q: is it white?
a: No
q: is it the car behind the firetruck?
a: Yes