Question: Renee Powell and Althea Gibson were the first two African-American female golfers on the LPGA Tour. In what other sport did Gibson win major championships?
{'answer': 'tennis', 'supporting_facts': [['Renee Powell', 1], ['Renee Powell', 2], ['Althea Gibson', 0], ['Althea Gibson', 1], ['Althea Gibson', 2], ['Althea Gibson', 4]]}