Question: who has the most 1000 yard rushing seasons
[{'answer': 'Emmitt Smith', 'provenance': [{'wikipedia_id': '3400724', 'title': 'List of National Football League records (individual)', 'start_paragraph_id': 174, 'start_character': 50, 'end_paragraph_id': 174, 'end_character': 62, 'bleu_score': 1.0, 'section': 'Section::::Rushing.:Rushing attempts.\n'}]}, {'provenance': [{'wikipedia_id': '3400724', 'title': 'List of National Football League records (individual)', 'start_paragraph_id': 208, 'start_character': 0, 'end_paragraph_id': 208, 'end_character': 64, 'bleu_score': 0.6132297420585351, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11412285659935829451}, 'section': 'Section::::Rushing.:Rushing yards.\n'}]}]