Question: who sang the songs in coal miner's daughter
[{'answer': 'Sissy Spacek', 'provenance': [{'wikipedia_id': '4761411', 'title': "Coal Miner's Daughter (song)", 'start_paragraph_id': 12, 'start_character': 284, 'end_paragraph_id': 12, 'end_character': 296, 'bleu_score': 1.0, 'section': 'Section::::Legacy.\n'}]}, {'provenance': [{'wikipedia_id': '4761411', 'title': "Coal Miner's Daughter (song)", 'start_paragraph_id': 12, 'start_character': 0, 'end_paragraph_id': 12, 'end_character': 460, 'bleu_score': 0.944475589384524, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7539609722148161423}, 'section': 'Section::::Legacy.\n'}]}]