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

Guessing-game dialogue about one of the objects:
q: is the red bus?
a: No
q: is a car?
a: No
q: is a person?
a: Yes
q: the driver of bus?
a: No
q: a person in back of bus?
a: Yes
q: the most in back?
a: Yes