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

Guessing-game dialogue about one of the objects:
q: Is it a person?
a: No
q: The snowboard of the person in front?
a: No
q: An item of clothing?
a: Yes
q: On the person in front?
a: No
q: On one of those to the left of them?
a: Yes
q: The backpack on the person in red coat?
a: Yes