Question: who played the frog in gnomeo and juliet
[{'answer': 'Ashley Jensen', 'provenance': [{'wikipedia_id': '27609842', 'title': 'Gnomeo & Juliet', 'start_paragraph_id': 1, 'start_character': 542, 'end_paragraph_id': 1, 'end_character': 555, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '27609842', 'title': 'Gnomeo & Juliet', 'start_paragraph_id': 20, 'start_character': 0, 'end_paragraph_id': 20, 'end_character': 146, 'bleu_score': 0.9067110266941041, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1896755729676559806}, 'section': 'Section::::Cast.\n'}]}]