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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: Yes
q: Are they behind the door or in the train?
a: Yes
q: Are they behind the door in the middle?
a: No
q: Are they in the window on the right side?
a: No
q: Is it the man in the front with the blue shirt?
a: No
q: Are they behind the window on the left side?
a: No
q: Are they wearing a white shirt?
a: No
q: Are they wearing a blue/black shirt?
a: No