Question: who sang i ain't no fortunate one
[{'answer': 'Creedence Clearwater Revival', 'provenance': [{'wikipedia_id': '4586749', 'title': 'Fortunate Son', 'start_paragraph_id': 1, 'start_character': 52, 'end_paragraph_id': 1, 'end_character': 80, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '4586749', 'title': 'Fortunate Son', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 451, 'bleu_score': 0.8450267934971201, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8949252917862367453}, 'section': 'Section::::Abstract.'}]}]