Objects in the image:
category: bus
category: sports ball
category: sports ball

Guessing-game dialogue about one of the objects:
q: is it the bus?
a: No
q: is it a person?
a: No
q: is it green?
a: No
q: is it a sign?
a: No
q: is it a light?
a: No
q: is it something on the bus?
a: Yes
q: is it the ball?
a: Yes