Question: who played lou grant's wife on mary tyler moore
[{'answer': 'Priscilla Morrill', 'provenance': [{'wikipedia_id': '22156642', 'title': 'Priscilla Morrill', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 17, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '22156642', 'title': 'Priscilla Morrill', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 175, 'bleu_score': 0.50372556675874, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1177142436312323293}, 'section': 'Section::::Abstract.'}]}]