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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: is it a bus?
a: Yes
q: is it the red/green bus on the left?
a: No
q: is it the bus on the right?
a: Yes