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

Guessing-game dialogue about one of the objects:
q: is it on the train?
a: No
q: is it a light?
a: Yes
q: hanging from the canopy?
a: Yes
q: with the green light on the far left?
a: Yes
q: is it the green light?
a: Yes