Objects in the image:
category: car
category: bus
category: stop sign
category: car
category: bus
category: car
category: bus
category: traffic light
category: bus
category: car
category: bus
category: car
category: car
category: car
category: car
category: bus

Guessing-game dialogue about one of the objects:
q: is it a vehicle?
a: Yes
q: is it the bus?
a: No
q: is it the black car at lower right?
a: No
q: is it the gray car in front of the black car?
a: No
q: is it the white car at far right?
a: No