context: It is certain that Brian is white. It is highly likely that Julius is a rhino. We believe that Lily is green.
hypothesis: Chances are slight that either Julius is a rhino, or Brian is white.
valid_hypothesis: Chances are slight that either Julius is a rhino, or Brian is white.
invalid_hypothesis: There is a very good chance that either Julius is a rhino, or Brian is white.
hypothesis_assertion: Either Julius is a rhino, or Brian is white.