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

Guessing-game dialogue about one of the objects:
q: IS IT A PERSON?
a: Yes
q: IS HE IN THE FRONT OF THE TRAIN?
a: Yes
q: IS THE ONE SITTING?
a: No
q: IS HE STANDING IN THE LEFT?
a: Yes