Question: who did john wayne play in true grit
[{'answer': 'U.S. Marshal Rooster Cogburn', 'provenance': [{'wikipedia_id': '161912', 'title': 'True Grit (1969 film)', 'start_paragraph_id': 1, 'start_character': 125, 'end_paragraph_id': 1, 'end_character': 153, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '161912', 'title': 'True Grit (1969 film)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 408, 'bleu_score': 0.806442491233137, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 136896817017794260}, 'section': 'Section::::Abstract.'}]}]