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

Guessing-game dialogue about one of the objects:
q: is it the train?
a: N/A
q: the whole thing?
a: No
q: Is it the front car, furthest away?
a: No
q: back car closest to us?
a: N/A
q: something on the train?
a: Yes
q: inside a train window?
a: Yes
q: red shirt?
a: No
q: Is it the window on the right with the line through it?
a: Yes