Question: Which American hip hop artist had his film debut in 'Get Rich or Die Tryin' which featured his song 'I'll Whip Ya Head Boy' as the intro to the film?
{'answer': '50 Cent', 'supporting_facts': [["I'll Whip Ya Head Boy", 0], ["I'll Whip Ya Head Boy", 2], ["Get Rich or Die Tryin' (film)", 0]]}