Question: who portrayed dorothy in 1925's the wizard of oz
[{'answer': 'Dorothy Dwan', 'provenance': [{'wikipedia_id': '3062551', 'title': 'The Wizard of Oz (1925 film)', 'start_paragraph_id': 1, 'start_character': 330, 'end_paragraph_id': 1, 'end_character': 342, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '3062551', 'title': 'The Wizard of Oz (1925 film)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 386, 'bleu_score': 0.526201884338512, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2488275077739906589}, 'section': 'Section::::Abstract.'}]}]