Objects in the image:
category: bus
category: person
category: person
category: person
category: airplane
category: bus
category: bus
category: person
category: person
category: person
category: person
category: person

Guessing-game dialogue about one of the objects:
q: is it a plane?
a: No
q: is it a building?
a: No
q: is it a bus?
a: No
q: is it a person?
a: Yes
q: is he wearing a yellow shirt?
a: No
q: is it someone leaning on a rail?
a: Yes
q: is it someone right near the bus?
a: No
q: are they wearing a green shirt?
a: Yes