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

Guessing-game dialogue about one of the objects:
q: car ??
a: No
q: traffic light?
a: Yes
q: green light?
a: No
q: back to us?
a: Yes
q: left most?
a: Yes