context: It is probable that Bernhard is yellow. There is little chance that Julius is a rhino. It is unlikely that Greg is green. There is a better than even chance that if either Julius is a rhino, or Bernhard is yellow, then Daniel took the football. It is almost certain that if Julius is a rhino, or Greg is green, then John moved to the garden. It is likely that if Julius is a rhino, and Greg is green, then Mary got the apple.
hypothesis: It is improbable that either Mary got the apple, or Julius is a rhino.
valid_hypothesis: It is improbable that either Mary got the apple, or Julius is a rhino.
invalid_hypothesis: We believe that either Mary got the apple, or Julius is a rhino.
hypothesis_assertion: Either Mary got the apple, or Julius is a rhino.