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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: is it the bus?
a: No
q: is it a car?
a: No
q: is it a bag?
a: Yes
q: is it the bag the person is holding by the bus?
a: Yes