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

Guessing-game dialogue about one of the objects:
q: is it a vehicle?
a: No
q: is it a light?
a: Yes
q: green traffic light?
a: Yes
q: one a the left?
a: No
q: one at the right, above white van?
a: Yes