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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: is any of the people wearing it?
a: Yes
q: is it used on the head?
a: No
q: is it used on the feet?
a: Yes
q: is it on the center area of the picture?
a: Yes
q: is it being used by the guy on red?
a: Yes
q: is it being used on both feet?
a: Yes