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

Guessing-game dialogue about one of the objects:
q: is it a train?
a: No
q: is it a person?
a: Yes
q: i can't see everyone clearly. are they on the left?
a: No
q: are they on the train?
a: Yes
q: is it the guy with the white hair?
a: No
q: are they wearing red?
a: Yes
q: is there more than one person wearing red?
a: No