Objects in the image:
category: car
category: car
category: train

Guessing-game dialogue about one of the objects:
q: is it the train?
a: Yes
q: is it the whole train?
a: No
q: is it the engine car?
a: Yes
q: is it the one behind the engine car?
a: Yes
q: is it the white one?
a: Yes
q: is it the black one behind the white car?
a: Yes