context: It is impossible that Julius is a frog. There is little chance that Sumit is thirsty. It is certain that Winona is a sheep.
hypothesis: It is impossible that sumit is thirsty, and Julius is a frog.
valid_hypothesis: It is impossible that sumit is thirsty, and Julius is a frog.
invalid_hypothesis: We believe that sumit is thirsty, and Julius is a frog.
hypothesis_assertion: Sumit is thirsty, and Julius is a frog.