context: We doubt that John got the football. It is highly likely that Bill went to the bedroom. There is little chance that Greg is a frog. It is certain that if John got the football, or Greg is a frog, then Brian is a rhino. There is little chance that if Greg is a frog, and John got the football, then Julius is gray. It is highly unlikely that if Bill went to the bedroom, or John got the football, then Bernhard is green.
hypothesis: Chances are slight that either Greg is a frog, or Bernhard is green.
valid_hypothesis: Chances are slight that either Greg is a frog, or Bernhard is green.
invalid_hypothesis: We believe that either Greg is a frog, or Bernhard is green.
hypothesis_assertion: Either Greg is a frog, or Bernhard is green.