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

Guessing-game dialogue about one of the objects:
q: is it vehicle?
a: Yes
q: is it car?
a: Yes
q: is it green taxi next to bus?
a: No
q: is it it white car?
a: Yes