premise1: A skateboarder tries a courageous trick - soaring over a grocery cart poised carefully at the edge of a skate park's bowl.
premise2: A man on a skateboard is jumping over an empty grocery cart, there is a group of people in the background with bicycles.
premise3: A bearded man in blue jeans on a skateboard is jumping over a shopping cart.
premise4: A bearded man jumps his skateboard over a shopping cart.
premise: A skateboarder tries a courageous trick - soaring over a grocery cart poised carefully at the edge of a skate park's bowl. A man on a skateboard is jumping over an empty grocery cart, there is a group of people in the background with bicycles. A bearded man in blue jeans on a skateboard is jumping over a shopping cart. A bearded man jumps his skateboard over a shopping cart.
hypothesis: Several men watch.