Question: who does the voice of juliet in gnomeo
[{'answer': 'Emily Blunt', 'provenance': [{'wikipedia_id': '27609842', 'title': 'Gnomeo & Juliet', 'start_paragraph_id': 1, 'start_character': 468, 'end_paragraph_id': 1, 'end_character': 479, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '27609842', 'title': 'Gnomeo & Juliet', 'start_paragraph_id': 15, 'start_character': 0, 'end_paragraph_id': 15, 'end_character': 143, 'bleu_score': 0.910879922930628, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15262024303688736360}, 'section': 'Section::::Cast.\n'}]}]