Question: who sang i'll fly away in o brother where art thou
[{'answer': 'Alison Krauss', 'provenance': [{'wikipedia_id': '194349', 'title': 'O Brother, Where Art Thou? (soundtrack)', 'start_paragraph_id': 10, 'start_character': 418, 'end_paragraph_id': 10, 'end_character': 431, 'bleu_score': 1.0, 'section': 'Section::::Reception and legacy.\n'}]}, {'answer': 'Gillian Welch', 'provenance': [{'wikipedia_id': '194349', 'title': 'O Brother, Where Art Thou? (soundtrack)', 'start_paragraph_id': 10, 'start_character': 436, 'end_paragraph_id': 10, 'end_character': 449, 'bleu_score': 1.0, 'section': 'Section::::Reception and legacy.\n'}]}, {'provenance': [{'wikipedia_id': '194349', 'title': 'O Brother, Where Art Thou? (soundtrack)', 'start_paragraph_id': 10, 'start_character': 0, 'end_paragraph_id': 10, 'end_character': 467, 'bleu_score': 0.8805832157563961, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11909117672121101244}, 'section': 'Section::::Reception and legacy.\n'}]}]