context: There is almost no chance that Bernhard is yellow. It is certain that Mary is in the school. Chances are slight that Bill went to the bedroom. It is highly likely that if Mary is in the school, or Bernhard is yellow, then Sumit is thirsty. It is probable that if Bill went to the bedroom, and Bernhard is yellow, then John picked up the apple. There is almost no chance that if Mary is in the school, or Bill went to the bedroom, then Sandra left the milk.
hypothesis: There is little chance that either Mary is in the school, or Sumit is thirsty.
valid_hypothesis: There is little chance that either Mary is in the school, or Sumit is thirsty.
invalid_hypothesis: There is a better than even chance that either Mary is in the school, or Sumit is thirsty.
hypothesis_assertion: Either Mary is in the school, or Sumit is thirsty.