Question: who sung if ever i would leave you
[{'answer': 'Robert Goulet', 'provenance': [{'wikipedia_id': '435750', 'title': 'Camelot (musical)', 'start_paragraph_id': 4, 'start_character': 824, 'end_paragraph_id': 4, 'end_character': 837, 'bleu_score': 1.0, 'section': 'Section::::Background.\n'}]}, {'provenance': [{'wikipedia_id': '435750', 'title': 'Camelot (musical)', 'start_paragraph_id': 7, 'start_character': 0, 'end_paragraph_id': 7, 'end_character': 631, 'bleu_score': 0.926627575090266, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7603049756699077880}, 'section': 'Section::::Background.:Tryouts and promotion.\n'}]}]