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

Guessing-game dialogue about one of the objects:
q: is it one of the traffic lights?
a: No
q: is it a car?
a: No
q: is it the train?
a: Yes
q: the whole train?
a: Yes