Question: who plays the queen in coming to america
[{'answer': 'Madge Sinclair', 'provenance': [{'wikipedia_id': '54540', 'title': 'Coming to America', 'start_paragraph_id': 15, 'start_character': 12, 'end_paragraph_id': 15, 'end_character': 26, 'bleu_score': 1.0, 'section': 'Section::::Cast.\n'}]}]