Input (grade 11): Khalid Boulahrouz (born 28 December 1981, in Maassluis, Netherlands) is a Dutch footballer of Berber Moroccan Rif descent, who plays for the Netherlands and VfB Stuttgart.
Output (grade 5): Khalid Boulahrouz (born 28 December 1981) is a Dutch football player. He plays for Stuttgart and Netherlands national team.