premise1: A snowboarder in a striped sweatshirt flies off a snowy ramp as a crowd watches.
premise2: Snowboarder in a striped shirt going off a ramp in front of a crowd.
premise3: A man is snowboarding at an organized event.
premise4: A snowboarder uses a ramp to grind a rail.
premise: A snowboarder in a striped sweatshirt flies off a snowy ramp as a crowd watches. Snowboarder in a striped shirt going off a ramp in front of a crowd. A man is snowboarding at an organized event. A snowboarder uses a ramp to grind a rail.
hypothesis: Many spectators watching.