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

Guessing-game dialogue about one of the objects:
q: is it a vehicle?
a: No
q: a type of light?
a: Yes
q: Is it green?
a: Yes
q: left one?
a: Yes