Question: nfl running backs that ran for 2000 yards
[{'answer': 'O.J. Simpson', 'provenance': [{'wikipedia_id': '25694003', 'title': '2,000-yard club', 'start_paragraph_id': 1, 'start_character': 460, 'end_paragraph_id': 1, 'end_character': 472, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Eric Dickerson', 'provenance': [{'wikipedia_id': '25694003', 'title': '2,000-yard club', 'start_paragraph_id': 1, 'start_character': 752, 'end_paragraph_id': 1, 'end_character': 766, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Barry Sanders', 'provenance': [{'wikipedia_id': '25694003', 'title': '2,000-yard club', 'start_paragraph_id': 2, 'start_character': 27, 'end_paragraph_id': 2, 'end_character': 40, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Terrell Davis', 'provenance': [{'wikipedia_id': '25694003', 'title': '2,000-yard club', 'start_paragraph_id': 2, 'start_character': 411, 'end_paragraph_id': 2, 'end_character': 424, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Jamal Lewis', 'provenance': [{'wikipedia_id': '25694003', 'title': '2,000-yard club', 'start_paragraph_id': 2, 'start_character': 712, 'end_paragraph_id': 2, 'end_character': 723, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Chris Johnson', 'provenance': [{'wikipedia_id': '25694003', 'title': '2,000-yard club', 'start_paragraph_id': 2, 'start_character': 1036, 'end_paragraph_id': 2, 'end_character': 1049, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Adrian Peterson', 'provenance': [{'wikipedia_id': '25694003', 'title': '2,000-yard club', 'start_paragraph_id': 2, 'start_character': 1193, 'end_paragraph_id': 2, 'end_character': 1208, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]