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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: Yes
q: is he the closest to us?
a: No
q: can we see him clearly?
a: Yes
q: is he in white top?
a: Yes
q: is he looking at something, like mobile?
a: Yes