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

Guessing-game dialogue about one of the objects:
q: is it a vehicle?
a: No
q: is it a  food?
a: No
q: is it a type of light?
a: Yes
q: is it a street light?
a: No
q: is it a traffic light?
a: Yes
q: is it the traffic light on the left?
a: No
q: is it the traffic light on the right?
a: Yes