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

Guessing-game dialogue about one of the objects:
q: person ??
a: Yes
q: skating ??
a: No
q: man in green shirt?
a: No
q: to right of him?
a: Yes
q: taller one?
a: No
q: one behind him?
a: Yes