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

Guessing-game dialogue about one of the objects:
q: Is it a person?
a: Yes
q: the person standing in back?
a: Yes
q: is it white top?
a: No
q: is it blue top?
a: Yes