Question: who established an efficient system to train nurses
[{'answer': 'Florence Nightingale', 'provenance': [{'wikipedia_id': '17032164', 'title': 'History of nursing', 'start_paragraph_id': 41, 'start_character': 84, 'end_paragraph_id': 41, 'end_character': 104, 'bleu_score': 1.0, 'section': "Section::::Modern.:Nightingale's Britain.\n"}]}, {'provenance': [{'wikipedia_id': '17032164', 'title': 'History of nursing', 'start_paragraph_id': 41, 'start_character': 0, 'end_paragraph_id': 41, 'end_character': 655, 'bleu_score': 0.982060959997838, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 674953519192994832}, 'section': "Section::::Modern.:Nightingale's Britain.\n"}]}]