Question: little house on the prairie cast mrs oleson
[{'answer': 'Katherine MacGregor', 'provenance': [{'wikipedia_id': '1475804', 'title': 'Katherine MacGregor', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 19, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]