context: Steffi Graf was introduced to tennis by her father Peter Graf, a car and insurance salesman and aspiring tennis coach, who taught her daughter, Steffi Graff, playing tennis with a wooden racquet in the living room at the age of three. Steffi Graf, who is passionate about tennis with her father's initiative, started training on her fourth year of court and played her first tournament in fifth. She started winning junior tournaments regularly and won the European Championships 12 and 18 in 1982.
question: What are the parents' names of Stephane Maria Graf?
answers.text: Peter Graf