Objects in the image:
category: person
category: person
category: backpack
category: traffic light
category: car
category: bus
category: person
category: car
category: traffic light
category: car
category: bus
category: person
category: person
category: car
category: bus
category: car
category: person
category: car
category: traffic light
category: car

Guessing-game dialogue about one of the objects:
q: is it traffic signal?
a: No
q: a car??
a: Yes
q: is it parked on the left of image?
a: Yes
q: the 1st one, closest to us?
a: Yes