context: It is certain that Brian is gray. It is certain that Mary dropped the milk. There is almost no chance that Daniel left the milk. There is little chance that if Brian is gray, and Daniel left the milk, then Julie is in the bedroom. It is probable that if Mary dropped the milk, and Brian is gray, then Greg is white. It is highly unlikely that if either Mary dropped the milk, or Brian is gray, then Lily is green.
hypothesis: We believe that lily is green, or Daniel left the milk.
valid_hypothesis: There is almost no chance that lily is green, or Daniel left the milk.
invalid_hypothesis: We believe that lily is green, or Daniel left the milk.
hypothesis_assertion: Lily is green, or Daniel left the milk.