Question: who wrote back at one by brian mcknight
[{'answer': 'Brian McKnight', 'provenance': [{'wikipedia_id': '4306125', 'title': 'Back at One (song)', 'start_paragraph_id': 1, 'start_character': 75, 'end_paragraph_id': 1, 'end_character': 89, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '4306125', 'title': 'Back at One (song)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 181, 'bleu_score': 0.8298536322016421, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3494355540073078901}, 'section': 'Section::::Abstract.'}]}]