context: Chances are about even that Lily is yellow. It is likely that Julius is a swan. It is impossible that Sandra got the football. It is likely that if Lily is yellow, or Sandra got the football, then John went to the hallway. It is improbable that if either Julius is a swan, or Sandra got the football, then Mary dropped the milk. It is likely that if Julius is a swan, and Lily is yellow, then Bernhard is a lion.
hypothesis: Chances are about even that john went to the hallway, or Bernhard is a lion.
valid_hypothesis: Chances are about even that john went to the hallway, or Bernhard is a lion.
invalid_hypothesis: It is impossible that john went to the hallway, or Bernhard is a lion.
hypothesis_assertion: John went to the hallway, or Bernhard is a lion.