premise: A person wearing dark jeans and white t-shirt, with a dark backpack on his back, and a camera in his left with a big lenses jumping off the end of a dock and into the water. hypothesis: A person is trying to swim to the other side of the dock.
neutral: Just because a person jumps off the end of a dock and into the water it doesn't mean they are trying to swim to the other side of the dock. He may be jumping off the dock to commit suicide. The backpack could be full of rocks that will make him sink to the bottom of the water and drown.