Question: where did the idea for the wizard of oz come from
[{'answer': "drawn from Baum 's experiences", 'provenance': [{'wikipedia_id': '54436', 'title': 'The Wonderful Wizard of Oz', 'start_paragraph_id': 30, 'start_character': 59, 'end_paragraph_id': 30, 'end_character': 89, 'bleu_score': 1.0, 'section': "Section::::Sources of images and ideas.:Baum's personal life.\n"}]}, {'provenance': [{'wikipedia_id': '54436', 'title': 'The Wonderful Wizard of Oz', 'start_paragraph_id': 30, 'start_character': 0, 'end_paragraph_id': 30, 'end_character': 1328, 'bleu_score': 0.9914344922798701, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17702580070765851333}, 'section': "Section::::Sources of images and ideas.:Baum's personal life.\n"}]}]