Question: who played tim's mother on home improvement
[{'answer': 'Bonnie Bartlett', 'provenance': [{'wikipedia_id': '11573905', 'title': 'List of Home Improvement characters', 'start_paragraph_id': 76, 'start_character': 28, 'end_paragraph_id': 76, 'end_character': 43, 'bleu_score': 1.0, 'section': 'Section::::Other recurring characters.\n'}]}]