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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: is it a backpack?
a: Yes
q: is it on the first girl?
a: Yes
q: is she on the right?
a: No
q: is she in the back?
a: Yes