Question: who played aunt bea on andy griffith show
[{'answer': 'Frances Elizabeth Bavier', 'provenance': [{'wikipedia_id': '1002510', 'title': 'Frances Bavier', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 24, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1002510', 'title': 'Frances Bavier', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 474, 'bleu_score': 0.9437815816129681, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11620078339347504471}, 'section': 'Section::::Abstract.'}]}]