context: Chances are about even that Greg is a rhino. We believe that Julius is yellow. It is likely that Lily is a frog.
hypothesis: It is impossible that either Julius is yellow, or Greg is a rhino.
valid_hypothesis: Chances are about even that either Julius is yellow, or Greg is a rhino.
invalid_hypothesis: It is impossible that either Julius is yellow, or Greg is a rhino.
hypothesis_assertion: Either Julius is yellow, or Greg is a rhino.