Input (grade 12): Nicolas "Nico" HÃ 1\/4 lkenberg (born 19 August 1987 in Emmerich am Rhein, North Rhine-Westphalia, former West Germany) is a German professional racing driver.
Output (grade 9): Nicolas "Nico" HÃ 1\/4 lkenberg (born 19 August 1987 in Emmerich am Rhein, North Rhine-Westphalia) is a German racing driver.