Question: who choreographed the dance piece called a wedding bouquet
[{'answer': 'Sir Frederick William Mallandaine Ashton', 'provenance': [{'wikipedia_id': '477178', 'title': 'Frederick Ashton', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 40, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '477178', 'title': 'Frederick Ashton', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 193, 'bleu_score': 0.712424372671501, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9664580800841169915}, 'section': 'Section::::Abstract.'}]}]