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

Guessing-game dialogue about one of the objects:
q: is it a building to left of tracks?
a: No
q: is it part of train?
a: No
q: is it white?
a: No
q: is it train tracks?
a: No
q: is it building to right of tracks?
a: No