context: It is impossible that Brian is gray. We believe that John left the football. We believe that Bernhard is a rhino.
hypothesis: It is highly unlikely that john left the football, or Bernhard is a rhino.
valid_hypothesis: It is almost certain that john left the football, or Bernhard is a rhino.
invalid_hypothesis: It is highly unlikely that john left the football, or Bernhard is a rhino.
hypothesis_assertion: John left the football, or Bernhard is a rhino.