Question: who played larry's mother on leave it to beaver
[{'answer': 'Madge Blake', 'provenance': [{'wikipedia_id': '10022618', 'title': 'List of Leave It to Beaver cast members', 'start_paragraph_id': 23, 'start_character': 12, 'end_paragraph_id': 23, 'end_character': 23, 'bleu_score': 1.0, 'section': 'Section::::Recurring cast.\n'}]}]