context: It is highly likely that Fred is in the kitchen. There is a better than even chance that John picked up the milk. We doubt that Winona is a wolf. It is probably the case that if Winona is a wolf, and Fred is in the kitchen, then Greg is green. It is probably not the case that if either Fred is in the kitchen, or Winona is a wolf, then Bernhard is a lion. Chances are about even that if either Winona is a wolf, or John picked up the milk, then Sumit is thirsty.
hypothesis: It is probably not the case that john picked up the milk, and Sumit is thirsty.
valid_hypothesis: It is probably not the case that john picked up the milk, and Sumit is thirsty.
invalid_hypothesis: We believe that john picked up the milk, and Sumit is thirsty.
hypothesis_assertion: John picked up the milk, and Sumit is thirsty.