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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: Yes
q: is he in left half?
a: N/A
q: can we see him fully?
a: No
q: inside the train?
a: Yes
q: in back row?
a: No