Question: what year did oscar de la hoya fight mayweather
[{'answer': '2007', 'provenance': [{'wikipedia_id': '8679351', 'title': 'Oscar De La Hoya vs. Floyd Mayweather Jr.', 'start_paragraph_id': 1, 'start_character': 133, 'end_paragraph_id': 1, 'end_character': 137, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '8679351', 'title': 'Oscar De La Hoya vs. Floyd Mayweather Jr.', 'start_paragraph_id': 1, 'start_character': 6, 'end_paragraph_id': 1, 'end_character': 431, 'bleu_score': 0.7953414656758131, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17985522008366970312}, 'section': 'Section::::Abstract.'}]}]