context: A man is riding up an escalator that is carrying shopping carts.
hypothesis: It is impossible that the man working at target was carrying shooping carts up the escalator.
valid_hypothesis: It is impossible that the man working at target was carrying shooping carts up the escalator.
invalid_hypothesis: Chances are about even that the man working at target was carrying shooping carts up the escalator.
hypothesis_assertion: The man working at target was carrying shooping carts up the escalator.