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

Guessing-game dialogue about one of the objects:
q: is it person?
a: No
q: is it bus?
a: No
q: is it car?
a: No
q: is it in left?
a: No
q: is it signal?
a: Yes
q: is it front one?
a: Yes
q: is it 1st one in front?
a: No
q: is 2nd one?
a: Yes