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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: a car?
a: No
q: the bus?
a: No
q: is it a truck?
a: No
q: is it in the background?
a: Yes
q: is it a vehicle?
a: No
q: is it the traffic light?
a: Yes
q: left one?
a: No