Objects in the image:
category: car
category: person
category: truck
category: fire hydrant
category: backpack
category: car
category: dog
category: car
category: car
category: car
category: car
category: person
category: car

Guessing-game dialogue about one of the objects:
q: it is someone?
a: No
q: it is a car?
a: Yes
q: a van?
a: N/A