context: A girl in a purple sweatshirt bends over backwards.
hypothesis: It is unlikely that a girl bends over backwards to do her gymnastics routine.
valid_hypothesis: It is unlikely that a girl bends over backwards to do her gymnastics routine.
invalid_hypothesis: There is a very good chance that a girl bends over backwards to do her gymnastics routine.
hypothesis_assertion: A girl bends over backwards to do her gymnastics routine.