Question: who was she walks in beauty written about
[{'answer': 'Mrs. Anne Beatrix Wilmot', 'provenance': [{'wikipedia_id': '1615343', 'title': 'She Walks in Beauty', 'start_paragraph_id': 2, 'start_character': 134, 'end_paragraph_id': 2, 'end_character': 158, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]