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

Guessing-game dialogue about one of the objects:
q: traffic light?
a: No
q: car ..?
a: Yes
q: black one in the middle?
a: Yes