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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: is it on the vehicle?
a: Yes
q: is it at the back of truck?
a: No
q: is it the vehicle?
a: Yes