Question: who played the mother on what's happening
[{'answer': 'Mabel Elizabeth King', 'provenance': [{'wikipedia_id': '1097324', 'title': 'Mabel King', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 20, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1097324', 'title': 'Mabel King', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 522, 'bleu_score': 0.9302403447188571, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9627024405720311835}, 'section': 'Section::::Abstract.'}]}]