context: It is unlikely that Sandra left the milk. There is a very good chance that Daniel took the apple. It is probably not the case that Mary moved to the office. It is impossible that if Sandra left the milk, or Daniel took the apple, then Bernhard is gray. Chances are slight that if either Mary moved to the office, or Daniel took the apple, then Lily is a lion. Chances are slight that if either Sandra left the milk, or Daniel took the apple, then John dropped the apple.
hypothesis: It is highly likely that john dropped the apple, or Lily is a lion.
valid_hypothesis: There is little chance that john dropped the apple, or Lily is a lion.
invalid_hypothesis: It is highly likely that john dropped the apple, or Lily is a lion.
hypothesis_assertion: John dropped the apple, or Lily is a lion.