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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: train ??
a: No
q: luggage ??
a: No
q: a backpack?
a: Yes
q: the one on the person to the left?
a: No
q: Is it the one on the person to the right in the forefront of the picture?
a: Yes
q: the whole backpack?
a: Yes