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

Guessing-game dialogue about one of the objects:
q: Is it a police car?
a: No
q: Is it a vehicle?
a: Yes
q: Is it the red bus?
a: No
q: Is it green?
a: No
q: Is it near the green truck?
a: No
q: Is it behind the police car in the middle?
a: No
q: Is it the blue van behind the red bus?
a: Yes