context: It is probable that Julius is a lion. It is unlikely that Bernhard is a swan. Chances are slight that Greg is a rhino.
hypothesis: There is little chance that either Julius is a lion, or Greg is a rhino.
valid_hypothesis: It is likely that either Julius is a lion, or Greg is a rhino.
invalid_hypothesis: There is little chance that either Julius is a lion, or Greg is a rhino.
hypothesis_assertion: Either Julius is a lion, or Greg is a rhino.