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

Guessing-game dialogue about one of the objects:
q: is it person?
a: Yes
q: is he in rightmost?
a: No
q: Are there two together?
a: No
q: is in white front?
a: N/A
q: is it in black?
a: No
q: is in train?
a: No
q: is he in backmost?
a: No
q: are they getting to the train?
a: No
q: in top of the train?
a: No
q: are they standing in right?
a: No
q: are they in backmost?
a: Yes
q: is the only person?
a: N/A