context: Roger Federer (8 August 1981) is a professional tennis player in Switzerland. From 2004 to 2008, he ranked No. 1 in the world ranking for 237 weeks in a row, and was ranked No. 1 in the longest consecutive record. He is recognized by many sports experts, critics and former and active players as the best player in history. [2] [3] [4] [5] [6]
question: Where is Roger Federer?
answers.text: Switzerland