Question: who plays the cowboy in the big lebowski
[{'answer': 'Samuel Pack Elliott', 'provenance': [{'wikipedia_id': '2101536', 'title': 'Sam Elliott', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 19, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]