Question: who plays the ancient one in doctor strange 2016
[{'answer': 'Tilda Swinton', 'provenance': [{'wikipedia_id': '41668588', 'title': 'Doctor Strange (2016 film)', 'start_paragraph_id': 1, 'start_character': 546, 'end_paragraph_id': 1, 'end_character': 559, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '41668588', 'title': 'Doctor Strange (2016 film)', 'start_paragraph_id': 19, 'start_character': 12, 'end_paragraph_id': 19, 'end_character': 2057, 'bleu_score': 0.9794582004973941, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13484109277404749210}, 'section': 'Section::::Cast.\n'}]}]