context: A skateboarder glides down a railing of some stairs.
hypothesis: It is probably the case that a skateboarder shows off a trick during a skate competition.
valid_hypothesis: There is almost no chance that a skateboarder shows off a trick during a skate competition.
invalid_hypothesis: It is probably the case that a skateboarder shows off a trick during a skate competition.
hypothesis_assertion: A skateboarder shows off a trick during a skate competition.