context: There is little chance that Greg is a frog. It is probable that Julius is gray. It is unlikely that Gertrude is a cat.
hypothesis: We believe that julius is gray, or Greg is a frog.
valid_hypothesis: We believe that julius is gray, or Greg is a frog.
invalid_hypothesis: It is improbable that julius is gray, or Greg is a frog.
hypothesis_assertion: Julius is gray, or Greg is a frog.