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

Guessing-game dialogue about one of the objects:
q: is it a train?
a: No
q: a person?
a: No
q: a sign or traffic light?
a: Yes
q: a sign?
a: No
q: a red light?
a: N/A
q: is it black?
a: Yes
q: above the train?
a: Yes
q: the big one, with the red light?
a: Yes
q: the whole thing, including the red light?
a: Yes