Objects in the image:
category: surfboard
category: person
category: person
category: person
category: person
category: person
category: person
category: person
category: person
category: surfboard
category: person
category: person
category: person
category: person
category: person
category: surfboard

Guessing-game dialogue about one of the objects:
q: is it a person?
a: Yes
q: is it surfing the board?
a: Yes
q: is it on left?
a: Yes
q: is it surfing the blue color board?
a: No
q: is it surfing the yellow one?
a: Yes