context: It is probable that Sumit is thirsty. We doubt that Brian is yellow. Chances are slight that Jeff went to the garden.
hypothesis: There is little chance that brian is yellow, and Sumit is thirsty.
valid_hypothesis: There is little chance that brian is yellow, and Sumit is thirsty.
invalid_hypothesis: It is highly likely that brian is yellow, and Sumit is thirsty.
hypothesis_assertion: Brian is yellow, and Sumit is thirsty.