Objects in the image:
category: motorcycle
category: person
category: backpack
category: person
category: person
category: car
category: motorcycle
category: person
category: truck
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 it the guy on his bike behind the car?
a: Yes