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

Guessing-game dialogue about one of the objects:
q: is a train?
a: No
q: a person?
a: Yes
q: left platform??
a: No
q: by the kiosk?
a: Yes
q: black shirt?
a: No
q: gray shirt?
a: Yes