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

Guessing-game dialogue about one of the objects:
q: is it the train?
a: No
q: is it a person?
a: Yes
q: do they have a white shirt on?
a: No
q: do they have a red shirt on?
a: No
q: do they have a black shirt on?
a: Yes
q: are they in front of the guy with a red shirt on?
a: Yes