Question: who has the most homeruns in baseball history
[{'answer': 'Barry Bonds', 'provenance': [{'wikipedia_id': '26021393', 'title': 'List of Major League Baseball annual home run leaders', 'start_paragraph_id': 3, 'start_character': 563, 'end_paragraph_id': 3, 'end_character': 574, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '26021393', 'title': 'List of Major League Baseball annual home run leaders', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 1046, 'bleu_score': 0.990171692033262, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3606670420354016558}, 'section': 'Section::::Abstract.'}]}]