Objects in the image:
category: truck
category: car
category: car
category: person
category: traffic light
category: traffic light
category: person
category: person
category: bus
category: traffic light
category: car
category: car
category: bus
category: person
category: person
category: traffic light
category: handbag
category: traffic light
category: handbag

Guessing-game dialogue about one of the objects:
q: is it person?
a: No
q: is it car?
a: No
q: is it stop light?
a: Yes
q: the one facing us with green light?
a: Yes