context: It is unlikely that Bernhard is a swan. It is likely that Greg is a frog. It is almost certain that Antoine is thirsty.
hypothesis: It is certain that antoine is thirsty, or Greg is a frog.
valid_hypothesis: It is certain that antoine is thirsty, or Greg is a frog.
invalid_hypothesis: Chances are about even that antoine is thirsty, or Greg is a frog.
hypothesis_assertion: Antoine is thirsty, or Greg is a frog.