Question: where did the wizard of oz come from
[{'answer': 'Omaha', 'provenance': [{'wikipedia_id': '54436', 'title': 'The Wonderful Wizard of Oz', 'start_paragraph_id': 14, 'start_character': 243, 'end_paragraph_id': 14, 'end_character': 248, 'bleu_score': 1.0, 'section': 'Section::::Plot.\n'}]}, {'provenance': [{'wikipedia_id': '54436', 'title': 'The Wonderful Wizard of Oz', 'start_paragraph_id': 14, 'start_character': 0, 'end_paragraph_id': 14, 'end_character': 859, 'bleu_score': 0.8429897868208921, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9492177812053451792}, 'section': 'Section::::Plot.\n'}]}]