context: There is little chance that Greg is a frog. There is almost no chance that Fred went to the garden. It is likely that Brian is a swan.
hypothesis: Chances are slight that fred went to the garden, or Greg is a frog.
valid_hypothesis: Chances are slight that fred went to the garden, or Greg is a frog.
invalid_hypothesis: It is almost certain that fred went to the garden, or Greg is a frog.
hypothesis_assertion: Fred went to the garden, or Greg is a frog.