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

Guessing-game dialogue about one of the objects:
q: is it the bus?
a: No
q: is it a building?
a: No
q: is it on the ground?
a: No
q: is it a person on the bus?
a: Yes
q: is it the person on the second level of the bus, on the left side?
a: Yes