context: It is certain that Brian is white. It is almost certain that Julius is gray. There is little chance that Lily is green. We believe that if Lily is green, and Brian is white, then Sumit is thirsty. It is unlikely that if either Brian is white, or Julius is gray, then Mary went to the kitchen. It is probably not the case that if either Julius is gray, or Lily is green, then Sandra took the football.
hypothesis: Chances are about even that either Lily is green, or Sumit is thirsty.
valid_hypothesis: There is almost no chance that either Lily is green, or Sumit is thirsty.
invalid_hypothesis: Chances are about even that either Lily is green, or Sumit is thirsty.
hypothesis_assertion: Either Lily is green, or Sumit is thirsty.