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

Guessing-game dialogue about one of the objects:
q: is a person?
a: No
q: is wearing by a person?
a: Yes
q: is a backpack?
a: No
q: skies ??
a: Yes
q: belonging to a red jacket man?
a: No
q: belonging to the guy with red cap?
a: No
q: belonging to yellow boats man?
a: N/A
q: are the skies belonging to all black man?
a: Yes