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 a person?
a: Yes
q: is person's left hand visible?
a: No
q: is the person riding vehicle?
a: No
q: is the person wearing black top?
a: Yes