Question: who said pain is what the patient says it is
[{'answer': 'Margo McCaffery', 'provenance': [{'wikipedia_id': '17211316', 'title': 'Margo McCaffery', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 15, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '17211316', 'title': 'Margo McCaffery', 'start_paragraph_id': 1, 'start_character': 20, 'end_paragraph_id': 1, 'end_character': 367, 'bleu_score': 0.7901124866892301, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2907965656628100608}, 'section': 'Section::::Abstract.'}]}]