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

Guessing-game dialogue about one of the objects:
q: is it person?
a: No
q: is it a ski?
a: Yes
q: on front person?
a: Yes
q: the left ski?
a: N/A
q: both skis are one object?
a: Yes