Objects in the image:
category: backpack
category: person
category: person
category: person
category: train
category: person
category: person
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 train?
a: No
q: is he in platform?
a: Yes
q: is he on center of the photo?
a: No
q: is he on left?
a: No
q: does he wear blue shirt?
a: No
q: is he far left?
a: No