context: Chances are slight that Julius is a lion. It is likely that Jeff went to the garden. It is unlikely that Greg is a frog.
hypothesis: It is certain that jeff went to the garden, and Julius is a lion.
valid_hypothesis: It is highly unlikely that jeff went to the garden, and Julius is a lion.
invalid_hypothesis: It is certain that jeff went to the garden, and Julius is a lion.
hypothesis_assertion: Jeff went to the garden, and Julius is a lion.