Question: who plays in the new mary poppins movie
[{'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.'}]}, {'answer': 'Lin - Manuel Miranda', 'provenance': [{'wikipedia_id': '47886328', 'title': 'Mary Poppins Returns', 'start_paragraph_id': 22, 'start_character': 113, 'end_paragraph_id': 22, 'end_character': 135, 'bleu_score': 1.0, 'section': 'Section::::Production.:Casting.\n'}]}, {'answer': 'Ben Whishaw', 'provenance': [{'wikipedia_id': '47886328', 'title': 'Mary Poppins Returns', 'start_paragraph_id': 1, 'start_character': 353, 'end_paragraph_id': 1, 'end_character': 364, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Emily Mortimer', 'provenance': [{'wikipedia_id': '47886328', 'title': 'Mary Poppins Returns', 'start_paragraph_id': 1, 'start_character': 366, 'end_paragraph_id': 1, 'end_character': 380, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Julie Walters', 'provenance': [{'wikipedia_id': '47886328', 'title': 'Mary Poppins Returns', 'start_paragraph_id': 1, 'start_character': 382, 'end_paragraph_id': 1, 'end_character': 395, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Colin Firth', 'provenance': [{'wikipedia_id': '47886328', 'title': 'Mary Poppins Returns', 'start_paragraph_id': 1, 'start_character': 429, 'end_paragraph_id': 1, 'end_character': 440, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Meryl Streep', 'provenance': [{'wikipedia_id': '47886328', 'title': 'Mary Poppins Returns', 'start_paragraph_id': 1, 'start_character': 446, 'end_paragraph_id': 1, 'end_character': 458, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Nathanael Saleh'}, {'answer': 'Joel Dawson'}, {'answer': 'Pixie Davies'}, {'provenance': [{'wikipedia_id': '47886328', 'title': 'Mary Poppins Returns', 'start_paragraph_id': 1, 'start_character': 31, 'end_paragraph_id': 1, 'end_character': 628, 'bleu_score': 0.628986903279492, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7622955398004954529}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '47886328', 'title': 'Mary Poppins Returns', 'section': 'Section::::Abstract.', 'start_paragraph_id': 1, 'end_paragraph_id': 1, 'meta': {'evidence_span': ['tars Emily Blunt as Mary Poppins, with Lin-Manuel Miranda, Ben Whishaw, Emily Mortimer, Julie Walters, Dick Van Dyke, Angela Lansbury, Colin Firth, and Meryl Streep in supporting roles', 'Based on the book series "Mary Poppins" by P. L. Travers, the film is a sequel to the 1964 film "Mary Poppins", and stars Emily Blunt as Mary Poppins, with Lin-Manuel Miranda, Ben Whishaw, Emily Mortimer, Julie Walters, Dick Van Dyke, Angela Lansbury, Colin Firth, and Meryl Streep in supporting roles.', 'film "Mary Poppins", and stars Emily Blunt as Mary Poppins, with Lin-Manuel Miranda, Ben Whishaw, Emily Mortimer, Julie Walters, Dick Van Dyke, Angela Lansbury, Colin Firth, and Meryl Streep in supporting roles. Set in 1930s London, twent']}}]}]