Q: "A young boy with black shorts is surfing in the ocean." Does this mean that "A boy is learning how to surf in the ocean."?
A: it is not possible to tell

Q: "A male adolescent or young teenager is wearing camouflaged shorts or long swim trunks and is upside down over a body of water like a lake or reservoir whose cement walls and graveled top appear in the corner." Does this mean that "A teenager is upside down over a body of water."?
A: yes

Q: "A blond-haired child is swinging on a tire swing." Does this mean that "A child playing on a tire swing while others wait in line."?
A: it is not possible to tell

Q: "A man snowboarding making a jump off a steel guard rail." Does this mean that "A man is wearing a snowboard."?
A:
yes