premise1: Four boys, one on a skateboard, one on a scooter, and two standing, are at a skate park on a ramp with a scary looking face graffiti on it.
premise2: At a skate park one man skateboards, one rides a scooter and two men record the skateboarder from below and above him.
premise3: A boy at a skate park is at the apex of his trick while other boys look on.
premise4: A boy on a scooter rolls by as two men photograph a skateboarder.
premise: Four boys, one on a skateboard, one on a scooter, and two standing, are at a skate park on a ramp with a scary looking face graffiti on it. At a skate park one man skateboards, one rides a scooter and two men record the skateboarder from below and above him. A boy at a skate park is at the apex of his trick while other boys look on. A boy on a scooter rolls by as two men photograph a skateboarder.
hypothesis: Men boxing.