Question: who played aunt ethel on sanford and son
[{'answer': 'Beah Richards', 'provenance': [{'wikipedia_id': '5187026', 'title': 'Esther Anderson (Sanford and Son)', 'start_paragraph_id': 3, 'start_character': 91, 'end_paragraph_id': 3, 'end_character': 104, 'bleu_score': 1.0, 'section': "Section::::Enemy for Foxx's character.\n"}]}, {'provenance': [{'wikipedia_id': '5187026', 'title': 'Esther Anderson (Sanford and Son)', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 275, 'bleu_score': 0.958740481558872, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 18223565291441462652}, 'section': "Section::::Enemy for Foxx's character.\n"}]}]