Question: who is the original singer of when a man loves a woman
[{'answer': 'first recorded by Percy Sledge', 'provenance': [{'wikipedia_id': '4123498', 'title': 'When a Man Loves a Woman (song)', 'start_paragraph_id': 1, 'start_character': 83, 'end_paragraph_id': 1, 'end_character': 113, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '4123498', 'title': 'When a Man Loves a Woman (song)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 524, 'bleu_score': 0.979054689945215, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12715040107715457999}, 'section': 'Section::::Abstract.'}]}]