Question: When was the British former professional boxer born who competed from 1997 to 2012 and who was defeated in December 2007 against Floyd Mayweather?
{'answer': '6 October 1978', 'supporting_facts': [['Floyd Mayweather Jr. vs. Juan Manuel Márquez', 0], ['Floyd Mayweather Jr. vs. Juan Manuel Márquez', 1], ['Ricky Hatton', 0]]}