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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: is it a vehicle?
a: No
q: is it a sign?
a: No
q: is it the red thing on the trailer?
a: No
q: is it a stoplight?
a: Yes