Question: who played loretta lynn's father in coal miner's daughter
[{'answer': 'Levon Helm', 'provenance': [{'wikipedia_id': '106337', 'title': "Coal Miner's Daughter (film)", 'start_paragraph_id': 1, 'start_character': 453, 'end_paragraph_id': 1, 'end_character': 463, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]