Objects in the image:
category: skateboard
category: traffic light
category: traffic light
category: car
category: person
category: traffic light
category: traffic light
category: car
category: truck
category: person
category: skateboard
category: sports ball
category: car
category: traffic light

Guessing-game dialogue about one of the objects:
q: is a skateboard?
a: No
q: is a car?
a: No
q: is a camera?
a: No
q: is a person?
a: No
q: is a traffic signal?
a: Yes
q: one of the 2 with green light on?
a: Yes
q: left one?
a: Yes