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

Guessing-game dialogue about one of the objects:
q: Is it a person?
a: Yes
q: Is it wearing white?
a: Yes
q: Is it standing?
a: Yes
q: Is it standing ON the truck?
a: Yes
q: Is it the person wearing white, who is standing on the truck in front of two people wearing blue?
a: No
q: Is it the other person standing up on the truck wearing white?  The one behind the guy wearing a blue shirt?
a: No
q: Is it a person?
a: Yes
q: Are they on the truck?
a: Yes
q: Are they standing?
a: Yes
q: Are they in the back half of the truck?
a: No
q: Are they standing on the front half of the truck?
a: Yes
q: Is it the person whose back is facing us?
a: Yes