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

Guessing-game dialogue about one of the objects:
q: is it a vehicle?
a: No
q: is it a road signal?
a: No
q: is a signal board?
a: Yes
q: is it hanging on air?
a: No
q: Is it the one on the right of the road?
a: N/A