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

Guessing-game dialogue about one of the objects:
q: is it vehicle?
a: Yes
q: is it bus?
a: No
q: is it motorcycle?
a: No
q: is it car?
a: Yes
q: the car behind bus, at right?
a: Yes