context: We doubt that Greg is a lion. There is little chance that Bernhard is gray. It is highly likely that Fred went to the garden.
hypothesis: It is likely that fred went to the garden, and Bernhard is gray.
valid_hypothesis: Chances are slight that fred went to the garden, and Bernhard is gray.
invalid_hypothesis: It is likely that fred went to the garden, and Bernhard is gray.
hypothesis_assertion: Fred went to the garden, and Bernhard is gray.