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

Guessing-game dialogue about one of the objects:
q: is it a number?
a: No
q: is it part of the red train?
a: No
q: is it a railroad track?
a: No
q: is it the bridge?
a: No
q: is it a light?
a: Yes
q: is it the light under number 3?
a: Yes