context: We doubt that Bernhard is a swan. It is certain that Fred went to the cinema. It is probably the case that Mary took the apple. We believe that if Mary took the apple, and Bernhard is a swan, then Lily is white. It is probably not the case that if either Mary took the apple, or Bernhard is a swan, then Julius is a rhino. It is highly unlikely that if Bernhard is a swan, and Mary took the apple, then Greg is gray.
hypothesis: There is almost no chance that either Fred went to the cinema, or Lily is white.
valid_hypothesis: It is highly likely that either Fred went to the cinema, or Lily is white.
invalid_hypothesis: There is almost no chance that either Fred went to the cinema, or Lily is white.
hypothesis_assertion: Either Fred went to the cinema, or Lily is white.