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

Guessing-game dialogue about one of the objects:
q: is it a vehicle?
a: Yes
q: is it a bus?
a: No
q: is it cop car?
a: No
q: is it truck?
a: No
q: is it taxi?
a: No
q: black roof car behind bus?
a: Yes