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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: Yes
q: Can you see all of their face?
a: No
q: Are they touching the railing?
a: Yes
q: Are they wearing white?
a: No
q: are they immediately to the right of the person wearing white?
a: Yes