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

Guessing-game dialogue about one of the objects:
q: is it a train .?
a: Yes
q: the white one .?
a: No
q: is it the left side one?
a: Yes