context: There is a better than even chance that Bernhard is gray. It is certain that Lily is a lion. There is a better than even chance that Sandra grabbed the milk. It is highly unlikely that if either Sandra grabbed the milk, or Lily is a lion, then Brian is a frog. It is almost certain that if Bernhard is gray, or Sandra grabbed the milk, then Mary got the football. It is likely that if either Bernhard is gray, or Sandra grabbed the milk, then John went to the bedroom.
hypothesis: We believe that sandra grabbed the milk, or John went to the bedroom.
valid_hypothesis: We believe that sandra grabbed the milk, or John went to the bedroom.
invalid_hypothesis: It is impossible that sandra grabbed the milk, or John went to the bedroom.
hypothesis_assertion: Sandra grabbed the milk, or John went to the bedroom.