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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: is it a train car?
a: No
q: is it on the train?
a: No
q: is it a vehicle?
a: Yes
q: is it the white van?
a: N/A
q: the white truck?
a: N/A
q: is it one of the tractors?
a: No