context: A crowded city street with lots of pedestrians.
hypothesis: It is impossible that the pedistrians are waiting for a parade to come through this busy street.
valid_hypothesis: It is impossible that the pedistrians are waiting for a parade to come through this busy street.
invalid_hypothesis: There is a very good chance that the pedistrians are waiting for a parade to come through this busy street.
hypothesis_assertion: The pedistrians are waiting for a parade to come through this busy street.