context: It is impossible that Brian is white. It is probably the case that John got the apple. It is probable that Daniel took the milk. There is little chance that if either Brian is white, or Daniel took the milk, then Lily is yellow. Chances are slight that if either John got the apple, or Daniel took the milk, then Mary went to the bedroom. Chances are about even that if either Brian is white, or John got the apple, then Julius is a lion.
hypothesis: There is a very good chance that mary went to the bedroom, or Lily is yellow.
valid_hypothesis: Chances are slight that mary went to the bedroom, or Lily is yellow.
invalid_hypothesis: There is a very good chance that mary went to the bedroom, or Lily is yellow.
hypothesis_assertion: Mary went to the bedroom, or Lily is yellow.