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

Guessing-game dialogue about one of the objects:
q: is it human?
a: No
q: is it held by human?
a: No
q: is it shadow?
a: No
q: is it snowboard?
a: Yes
q: is it the one with the leftmost person?
a: No
q: is the with the second from left?
a: Yes
q: both legs boards are included?
a: No