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

Guessing-game dialogue about one of the objects:
q: Is it a person?
a: No
q: Is it a piece of skiing equipment?
a: Yes
q: Is it in the foreground?
a: No
q: Is it a pole?
a: No
q: Is it a is?
a: No
q: Is it a hat?
a: No
q: Is it an article of clothing?
a: No
q: Is it carried by the fourth person (in the background)?
a: No
q: Is it attached to someone's feet?
a: No
q: Is it a backpack?
a: Yes
q: Does it have red on it?
a: No
q: Is it on the guy in the middle?
a: Yes