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

Guessing-game dialogue about one of the objects:
q: is it in front?
a: No
q: is it in left?
a: No
q: is it person?
a: Yes
q: is in front to the truck?
a: No
q: is side to the truck?
a: Yes