Question: who has the most at bats in mlb history
[{'answer': 'Pete Rose', 'provenance': [{'wikipedia_id': '31740215', 'title': 'List of Major League Baseball career at-bat leaders', 'start_paragraph_id': 8, 'start_character': 0, 'end_paragraph_id': 8, 'end_character': 9, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '31740215', 'title': 'List of Major League Baseball career at-bat leaders', 'start_paragraph_id': 8, 'start_character': 0, 'end_paragraph_id': 8, 'end_character': 268, 'bleu_score': 0.8453952481008721, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11598898954480701349}, 'section': 'Section::::Abstract.'}]}]