Question: when was mickey mouse created by walt disney
[{'answer': '1928', 'provenance': [{'wikipedia_id': '20859', 'title': 'Mickey Mouse', 'start_paragraph_id': 1, 'start_character': 166, 'end_paragraph_id': 1, 'end_character': 170, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '20859', 'title': 'Mickey Mouse', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 324, 'bleu_score': 0.9645876452711911, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1153639675773902742}, 'section': 'Section::::Abstract.'}]}]