Question: where did the wizard of oz take place
[{'answer': 'the Land of Oz', 'provenance': [{'wikipedia_id': '561315', 'title': 'The Wizard of Oz (1939 film)', 'start_paragraph_id': 7, 'start_character': 35, 'end_paragraph_id': 7, 'end_character': 49, 'bleu_score': 1.0, 'section': 'Section::::Plot.\n'}]}]