Objects in the image:
category: traffic light
category: car
category: car
category: car
category: car
category: person
category: person
category: traffic light
category: car
category: person
category: car
category: car
category: traffic light
category: fire hydrant
category: traffic light

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: is it red?
a: No
q: is it green?
a: Yes
q: does it have letters on it?
a: No
q: is it necessary for drivers to follow?
a: Yes
q: is it closer to the street sign?
a: No