premise1: A lone skateboarder jumping a huge skateboarding ramp.
premise2: The skateboarder is jumping over a ramp.
premise3: An inline skater doing a jump on a ramp.
premise4: A skateboarder makes a jump off a ramp.
premise: A lone skateboarder jumping a huge skateboarding ramp. The skateboarder is jumping over a ramp. An inline skater doing a jump on a ramp. A skateboarder makes a jump off a ramp.
hypothesis: A man performs a trick.