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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: is it the train?
a: No
q: is it on the train?
a: No
q: is it something a man is holding?
a: No
q: is it the clock?
a: Yes