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: No
q: Is it a ski?
a: Yes
q: Is it on one of the first two people in front staring with the one in white?
a: No
q: Is it on the man facing this way?
a: No
q: Is it on one of the two sitting on the left?
a: No
q: Is it the photographer whose wearing them?
a: Yes