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

Guessing-game dialogue about one of the objects:
q: is it part of the train?
a: No
q: Is it one of the post?
a: No
q: Is it on the left side of the picture?
a: No
q: Is it in the middle?
a: Yes
q: is it a person?
a: Yes
q: Is the man on the platform?
a: Yes
q: Is the shaded part the whole person?
a: Yes
q: Is the shaded part a part of the man on the platform?
a: Yes