context: There is little chance that Fred moved to the office. It is improbable that John left the football. It is likely that Bernhard is a lion. It is certain that if John left the football, or Fred moved to the office, then Lily is a swan. It is improbable that if either Fred moved to the office, or John left the football, then Daniel grabbed the milk. There is a better than even chance that if John left the football, or Fred moved to the office, then Brian is gray.
hypothesis: It is impossible that either John left the football, or Bernhard is a lion.
valid_hypothesis: It is probably the case that either John left the football, or Bernhard is a lion.
invalid_hypothesis: It is impossible that either John left the football, or Bernhard is a lion.
hypothesis_assertion: Either John left the football, or Bernhard is a lion.