Objects in the image:
category: person
category: truck
category: person
category: bicycle
category: bicycle
category: person
category: person
category: person
category: person
category: person
category: person
category: person
category: bicycle
category: person
category: person
category: car
category: person

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: a vehicle?
a: Yes
q: china post truck?
a: No
q: the green car in front of it?
a: No
q: is it a bicycle?
a: Yes
q: is the driver wearing black?
a: No
q: is he wearing white?
a: Yes