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

Guessing-game dialogue about one of the objects:
q: is it train?
a: No
q: is it person?
a: Yes
q: is it on left side platform?
a: Yes
q: is it the one wearing white in front?
a: No
q: is it near by to him?
a: No
q: is it near by to the train?
a: Yes
q: a one wearing skyblue?
a: Yes