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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: Yes
q: are they surfing in the water?
a: Yes