Question: who sang sleeping single in a double bed
[{'answer': 'Barbara Mandrell', 'provenance': [{'wikipedia_id': '25607245', 'title': 'Sleeping Single in a Double Bed', 'start_paragraph_id': 1, 'start_character': 132, 'end_paragraph_id': 1, 'end_character': 148, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '25607245', 'title': 'Sleeping Single in a Double Bed', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 586, 'bleu_score': 0.9812185674664711, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7607366553645007163}, 'section': 'Section::::Abstract.'}]}]