context: A US Air-force member is handing off a little girl and her toy unicorn to a local citizen.
hypothesis: We believe that a soldier has just saved a little girl and her toy.
valid_hypothesis: It is impossible that a soldier has just saved a little girl and her toy.
invalid_hypothesis: We believe that a soldier has just saved a little girl and her toy.
hypothesis_assertion: A soldier has just saved a little girl and her toy.