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

Guessing-game dialogue about one of the objects:
q: is it person?
a: No
q: is it skis?
a: Yes
q: is it one worn by person in red shirt?
a: Yes
q: both skis?
a: Yes