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

Guessing-game dialogue about one of the objects:
q: is a car?
a: No
q: traffic light?
a: Yes
q: green light?
a: No
q: Is it the tallest one, facing left?
a: Yes
q: whole of it?
a: No
q: top part?
a: No
q: middle ??
a: Yes