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

Guessing-game dialogue about one of the objects:
q: Is the object made of metal?
a: No
q: Is the object in the sky?
a: No
q: Is the object a building?
a: No
q: Is the object on the train?
a: Yes
q: Is it a person?
a: Yes