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

Guessing-game dialogue about one of the objects:
q: is it that vehicle?
a: No
q: is it a man?
a: Yes
q: does he have white hair?
a: No
q: does he wear cap?
a: Yes
q: is his shirt black?
a: N/A
q: is his shirt colour blue?
a: No
q: is his cap blue?
a: Yes