Objects in the image:
category: person
category: person
category: skateboard
category: person
category: person
category: person
category: person
category: person
category: bench
category: boat

Guessing-game dialogue about one of the objects:
q: is it a person?
a: Yes
q: is it the skater?
a: No
q: the old man with glasses?
a: No
q: the shirtless man?
a: No
q: has a black shirt?
a: Yes
q: is he standing?
a: Yes