context: Man with beard doing skateboarding stunt
hypothesis: It is almost certain that a man with a goatee does a backflip on a skateboard.
valid_hypothesis: There is almost no chance that a man with a goatee does a backflip on a skateboard.
invalid_hypothesis: It is almost certain that a man with a goatee does a backflip on a skateboard.
hypothesis_assertion: A man with a goatee does a backflip on a skateboard.