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

Guessing-game dialogue about one of the objects:
q: is is on the subway?
a: Yes
q: is it a person?
a: Yes
q: is it a person wearing pink?
a: No
q: is it a person near the front of the train?
a: No
q: is it a person towards the back of the train?
a: Yes
q: is the person wearing blue?
a: Yes