Question: who wrote the young person's guide to the orchestra
[{'answer': 'Benjamin Britten', 'provenance': [{'wikipedia_id': '2563652', 'title': "The Young Person's Guide to the Orchestra", 'start_paragraph_id': 1, 'start_character': 75, 'end_paragraph_id': 1, 'end_character': 91, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '2563652', 'title': "The Young Person's Guide to the Orchestra", 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 616, 'bleu_score': 0.9788329837059241, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 834269072920394502}, 'section': 'Section::::Abstract.'}]}]