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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: holding by a person?
a: No
q: wearing by a person?
a: N/A
q: is it skates?
a: N/A
q: is it hand bag?
a: No
q: is it on their feet?
a: Yes
q: is it shoes?
a: No
q: is it on the blue tshirt feet?
a: Yes
q: wearing white trousers?
a: No
q: the red one?
a: Yes