Input (grade 7): Rafael Nadal defeated Novak Djokovic 6 - 4, 5 - 7, 6 - 4, 6 - 2 to win his first career US Open title.
Output (grade 6): Rafael Nadal defeated Novak Djokovic 6 - 4, 5 - 7, 6 - 4, 6 - 2 to win his first US Open title.