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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: is it a ski pole?
a: No
q: is it something worn?
a: No
q: is it around the skiers?
a: No
q: is it a mountain?
a: No
q: is it the snow?
a: No
q: is it the two poles behind skier?
a: No
q: is it the ski?
a: No
q: is it sky I meant?
a: No
q: is it in the top half of the photo?
a: No
q: is it one of the rocks in the bottom?
a: No