context: An athlete on the Slough Jets hockey team is skating on an ice rink with a hockey stick equipped.
hypothesis: Chances are about even that a hockey player warming up in the rink.
valid_hypothesis: Chances are about even that a hockey player warming up in the rink.
invalid_hypothesis: It is almost certain that a hockey player warming up in the rink.
hypothesis_assertion: A hockey player warming up in the rink.