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

Guessing-game dialogue about one of the objects:
q: train ??
a: Yes
q: green train on right?
a: No
q: reddish train to the left of green?
a: No
q: longer train next to red train?
a: No
q: green train next to that one?
a: No
q: far left?
a: No
q: far right?
a: Yes