Question: who beat hank aaron's home run record
[{'answer': 'Barry Bonds', 'provenance': [{'wikipedia_id': '14019702', 'title': 'List of milestone home runs by Barry Bonds', 'start_paragraph_id': 0, 'start_character': 31, 'end_paragraph_id': 0, 'end_character': 42, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '14019702', 'title': 'List of milestone home runs by Barry Bonds', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 455, 'bleu_score': 0.9074982079570021, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1698799404337886839}, 'section': 'Section::::Abstract.'}]}]