context: It is probably the case that Gertrude is a wolf. It is probably the case that Sandra got the football. There is almost no chance that Mary moved to the garden. We believe that if Gertrude is a wolf, and Sandra got the football, then Lily is white. There is little chance that if Sandra got the football, and Mary moved to the garden, then Bernhard is a swan. It is probably the case that if Sandra got the football, or Gertrude is a wolf, then John dropped the apple.
hypothesis: There is a better than even chance that either Mary moved to the garden, or John dropped the apple.
valid_hypothesis: There is a better than even chance that either Mary moved to the garden, or John dropped the apple.
invalid_hypothesis: There is almost no chance that either Mary moved to the garden, or John dropped the apple.
hypothesis_assertion: Either Mary moved to the garden, or John dropped the apple.