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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: is it a pole?
a: No
q: is it a sled?
a: N/A
q: is it a bag?
a: Yes
q: is it being pulled by the guy in front?
a: Yes
q: is it blue?
a: Yes