Question: where was o brother where art thou filmed
[{'answer': 'Canton , Mississippi', 'provenance': [{'wikipedia_id': '22216', 'title': 'O Brother, Where Art Thou?', 'start_paragraph_id': 33, 'start_character': 237, 'end_paragraph_id': 33, 'end_character': 260, 'bleu_score': 1.0, 'section': 'Section::::Production.\n'}]}, {'answer': 'Florence , South Carolina', 'provenance': [{'wikipedia_id': '22216', 'title': 'O Brother, Where Art Thou?', 'start_paragraph_id': 33, 'start_character': 261, 'end_paragraph_id': 33, 'end_character': 288, 'bleu_score': 1.0, 'section': 'Section::::Production.\n'}]}, {'provenance': [{'wikipedia_id': '22216', 'title': 'O Brother, Where Art Thou?', 'start_paragraph_id': 33, 'start_character': 0, 'end_paragraph_id': 33, 'end_character': 712, 'bleu_score': 0.9625181433061291, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3218282671364774781}, 'section': 'Section::::Production.\n'}]}]