Question: who play mary poppins in mary poppins returns
[{'answer': 'Emily Blunt', 'provenance': [{'wikipedia_id': '47886328', 'title': 'Mary Poppins Returns', 'start_paragraph_id': 1, 'start_character': 299, 'end_paragraph_id': 1, 'end_character': 310, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '47886328', 'title': 'Mary Poppins Returns', 'start_paragraph_id': 1, 'start_character': 31, 'end_paragraph_id': 1, 'end_character': 628, 'bleu_score': 0.598875479917896, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9652306958928655150}, 'section': 'Section::::Abstract.'}]}]