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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: is it a ski?
a: Yes
q: on one of the kids?
a: Yes
q: in the orange helmet?
a: Yes
q: on his right foot?
a: N/A
q: both of his skis?
a: Yes