Question: who directed butch cassidy and the sundance kid
[{'answer': 'George Roy Hill', 'provenance': [{'wikipedia_id': '99031', 'title': 'Butch Cassidy and the Sundance Kid', 'start_paragraph_id': 1, 'start_character': 79, 'end_paragraph_id': 1, 'end_character': 94, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '99031', 'title': 'Butch Cassidy and the Sundance Kid', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 594, 'bleu_score': 0.9354767830040901, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16251458791157512306}, 'section': 'Section::::Abstract.'}]}]