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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: Yes
q: is he sitting?
a: No
q: is he carrying something?
a: N/A
q: is he walking in the background?
a: Yes
q: is he the first person you see in the background?
a: No
q: can you only see one of his legs?
a: Yes