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

Guessing-game dialogue about one of the objects:
q: is it train?
a: Yes
q: is it long one?
a: No
q: is it short one at right?
a: Yes