Question: who holds the nfl record for most rushing yards in a season
[{'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.'}]}]