Question: when did the first snow white movie come out
[{'answer': '1937', 'provenance': [{'wikipedia_id': '76361', 'title': 'Snow White and the Seven Dwarfs (1937 film)', 'start_paragraph_id': 0, 'start_character': 33, 'end_paragraph_id': 0, 'end_character': 37, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '76361', 'title': 'Snow White and the Seven Dwarfs (1937 film)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 652, 'bleu_score': 0.9806740509884301, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16024225808686011432}, 'section': 'Section::::Abstract.'}]}]