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

Guessing-game dialogue about one of the objects:
q: is it car?
a: No
q: is it human?
a: No
q: is it sign?
a: N/A
q: is it traffic light?
a: Yes