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

Guessing-game dialogue about one of the objects:
q: it is person?
a: No
q: Is it a skate?
a: N/A
q: it is yellow?
a: No
q: it is on the ground?
a: Yes
q: it is blue?
a: Yes
q: under the man which wear green trousers?
a: Yes