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

Guessing-game dialogue about one of the objects:
q: is it person?
a: No
q: is it skis?
a: Yes
q: skis worn by person in gray suit and red cap in middle?
a: No
q: skis worn by leftmost person?
a: Yes