Question: who has the most belts in boxing history
[{'answer': 'Thomas Hearns', 'provenance': [{'wikipedia_id': '12262182', 'title': 'List of boxing quintuple champions', 'start_paragraph_id': 29, 'start_character': 9, 'end_paragraph_id': 29, 'end_character': 22, 'bleu_score': 1.0, 'section': 'Section::::Group of Quintuple Champions.:List of Boxing Quintuple or Five Division Champions — Major Titles.\n'}]}]