Question: who sings voi che sapete in the marriage of figaro
[{'answer': 'Cherubino', 'provenance': [{'wikipedia_id': '30418', 'title': 'The Marriage of Figaro', 'start_paragraph_id': 26, 'start_character': 156, 'end_paragraph_id': 26, 'end_character': 165, 'bleu_score': 1.0, 'section': 'Section::::Roles.\n'}]}, {'provenance': [{'wikipedia_id': '30418', 'title': 'The Marriage of Figaro', 'start_paragraph_id': 41, 'start_character': 0, 'end_paragraph_id': 41, 'end_character': 451, 'bleu_score': 0.9458134147569861, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11632036699145740165}, 'section': 'Section::::Synopsis.:Act 2.\n'}]}]