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

Guessing-game dialogue about one of the objects:
q: is it vehicle?
a: No
q: is it person?
a: Yes
q: Is the a person in a fluorescent jacket?
a: No
q: person in black jacket?
a: Yes