Question: What is the surname of the person the Czech winner of 12 Grand Slam doubles titles and four Grand Slam mixed doubles titles defeat in the 1998 wimbledon women's singles semifinals?
{'answer': 'Hingis', 'supporting_facts': [["1998 Wimbledon Championships – Women's Singles", 0], ['Jana Novotná', 0], ['Jana Novotná', 3]]}