Question: once upon a time in the west where was it filmed
[{'answer': 'U.S.', 'provenance': [{'wikipedia_id': '284676', 'title': 'Once Upon a Time in the West', 'start_paragraph_id': 48, 'start_character': 198, 'end_paragraph_id': 48, 'end_character': 202, 'bleu_score': 1.0, 'section': 'Section::::Production.:Locations.\n'}]}, {'answer': 'Guadix - Hernan Valle railway line'}, {'answer': 'fifteen miles north of Monument Valley , in Utah and two miles from U.S. Route 163'}, {'answer': 'the Province of Granada , Spain ,'}, {'provenance': [{'wikipedia_id': '284676', 'title': 'Once Upon a Time in the West', 'start_paragraph_id': 47, 'start_character': 0, 'end_paragraph_id': 47, 'end_character': 554, 'bleu_score': 0.543934125904394, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6763868267045186667}, 'section': 'Section::::Production.:Locations.\n'}]}]