premise1: Skateboarding wearing black pants, a white shirt, and a blue hat performing a skateboarding trick while three spectators look on in the background.
premise2: A man is skateboarding in a park, and he is on a wall, and there are other skateboarders in the background.
premise3: A skateboarder is perfecting his trick on a wall.
premise4: A skateboarder grinds on a cement obstacle.
premise: Skateboarding wearing black pants, a white shirt, and a blue hat performing a skateboarding trick while three spectators look on in the background. A man is skateboarding in a park, and he is on a wall, and there are other skateboarders in the background. A skateboarder is perfecting his trick on a wall. A skateboarder grinds on a cement obstacle.
hypothesis: A skater leaps.