Question: who sang the song stand by your man
[{'answer': 'Tammy Wynette', 'provenance': [{'wikipedia_id': '3962736', 'title': 'Stand by Your Man', 'start_paragraph_id': 1, 'start_character': 44, 'end_paragraph_id': 1, 'end_character': 57, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]