Objects in the image:
category: bus
category: person
category: truck
category: car
category: person
category: car
category: traffic light
category: person
category: car
category: car
category: car
category: bicycle
category: person
category: car
category: traffic light
category: car
category: car

Guessing-game dialogue about one of the objects:
q: the person?
a: No
q: the vehicle?
a: Yes
q: car in the foreground?
a: No
q: in the background?
a: Yes
q: is it in the right side?
a: No
q: is it a car?
a: Yes
q: left side of the road?
a: No
q: middle ..?
a: Yes
q: the red one?
a: Yes