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

Guessing-game dialogue about one of the objects:
q: Is it a person?
a: Yes
q: Is it one of the people skiing in the front?
a: No
q: I see three people skiing behind the group of four. Is it  one of those three people?
a: Yes
q: Is it the person in the middle in the group of three?
a: No
q: Is the man wearing greenish jacket in the group of three?
a: Yes