context: It is certain that John got the apple. It is impossible that Lily is yellow. There is little chance that Greg is a rhino.
hypothesis: It is highly likely that either Greg is a rhino, or Lily is yellow.
valid_hypothesis: Chances are slight that either Greg is a rhino, or Lily is yellow.
invalid_hypothesis: It is highly likely that either Greg is a rhino, or Lily is yellow.
hypothesis_assertion: Either Greg is a rhino, or Lily is yellow.