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

Guessing-game dialogue about one of the objects:
q: is a vehicle?
a: No
q: is a person?
a: Yes
q: the driver of bus?
a: No
q: the biker??
a: Yes