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

Guessing-game dialogue about one of the objects:
q: Is it a person?
a: No
q: Is it a tree?
a: No
q: Is it something that someone it holding?
a: No
q: Is a person wearing it?
a: No
q: Is it the snow?
a: No
q: is it a structure?
a: No
q: Is it a land formation?
a: No
q: Is it a sign?
a: No
q: Is it touching a person?
a: Yes
q: Is it a backpack?
a: No
q: Is it a snowboard or skis?
a: Yes
q: Is the person touching this wearing red?
a: Yes
q: Are they higher up the mountain?
a: Yes