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

Guessing-game dialogue about one of the objects:
q: Is it a person?
a: No
q: Is it something a person is wearing?
a: Yes
q: Is it man standing it the middle of the picture in the red ski pants wearing it?
a: Yes
q: Is it clothing?
a: No
q: Is it his hat?
a: No
q: Is it his shoes?
a: No
q: Is it something on his back?
a: Yes
q: Is it EVERYTHING on his back?
a: No
q: Are they the orange skis trimmed in yellow?
a: No
q: Is it what looks like a water bottle/canteen hanging off the bottom of his pack?
a: No
q: Does the canteen include the straps hanging off the bottom of IT?
a: No
q: Is it just the strap hanging off the bottom of the canteen?
a: No
q: Is it the red and black backpack itself?
a: Yes
q: Is it ALL of the backpack we can see in the picture?
a: Yes