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

Guessing-game dialogue about one of the objects:
q: is it the long train on the right?
a: No
q: is it the blue train?
a: No
q: is it part of the long train?
a: No
q: is it one of the black things sticking out upwards from the metal construction?
a: Yes
q: is it the left one?
a: Yes