Question: who released the rock opera inspired country album tommy bluegrass opera
[{'answer': 'The Hillbenders', 'provenance': [{'wikipedia_id': '157486', 'title': 'Tommy (album)', 'start_paragraph_id': 64, 'start_character': 24, 'end_paragraph_id': 64, 'end_character': 39, 'bleu_score': 1.0, 'section': 'Section::::Other incarnations.:Bluegrass.\n'}]}, {'provenance': [{'wikipedia_id': '157486', 'title': 'Tommy (album)', 'start_paragraph_id': 64, 'start_character': 0, 'end_paragraph_id': 64, 'end_character': 482, 'bleu_score': 0.9754554449993441, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 18145540561494604335}, 'section': 'Section::::Other incarnations.:Bluegrass.\n'}]}]