context: It is highly unlikely that Julius is a rhino. It is highly likely that Sandra left the football. It is highly likely that Bernhard is a swan.
hypothesis: Chances are slight that sandra left the football, or Bernhard is a swan.
valid_hypothesis: It is certain that sandra left the football, or Bernhard is a swan.
invalid_hypothesis: Chances are slight that sandra left the football, or Bernhard is a swan.
hypothesis_assertion: Sandra left the football, or Bernhard is a swan.