context: It is highly likely that John went to the garden. We believe that Greg is a lion. We believe that Fred is in the park.
hypothesis: There is little chance that john went to the garden, or Greg is a lion.
valid_hypothesis: It is certain that john went to the garden, or Greg is a lion.
invalid_hypothesis: There is little chance that john went to the garden, or Greg is a lion.
hypothesis_assertion: John went to the garden, or Greg is a lion.