context: There is a better than even chance that Lily is yellow. Chances are slight that John got the football. It is probable that Sandra dropped the apple. There is little chance that if John got the football, and Lily is yellow, then Julius is a rhino. There is a better than even chance that if Sandra dropped the apple, or John got the football, then Greg is a swan. It is highly unlikely that if John got the football, or Sandra dropped the apple, then Bernhard is green.
hypothesis: It is highly unlikely that either Julius is a rhino, or Bernhard is green.
valid_hypothesis: It is highly unlikely that either Julius is a rhino, or Bernhard is green.
invalid_hypothesis: There is a very good chance that either Julius is a rhino, or Bernhard is green.
hypothesis_assertion: Either Julius is a rhino, or Bernhard is green.