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

Guessing-game dialogue about one of the objects:
q: is it person?
a: Yes
q: Is it on the ground outside the vehicle?
a: No
q: Is it inside the green truck?
a: Yes
q: driver the one its left?
a: No
q: the one on glass side where 773 is written?
a: Yes