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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: Yes
q: is he alone?
a: No
q: is he inside train?
a: No
q: is he is the 1st person?
a: N/A