Question: why did the mom on the waltons leave
[{'answer': 'tuberculosis and entering a sanatorium', 'provenance': [{'wikipedia_id': '1530473', 'title': 'Michael Learned', 'start_paragraph_id': 9, 'start_character': 72, 'end_paragraph_id': 9, 'end_character': 110, 'bleu_score': 1.0, 'section': 'Section::::Career.:Television.\n'}]}, {'provenance': [{'wikipedia_id': '1530473', 'title': 'Michael Learned', 'start_paragraph_id': 9, 'start_character': 0, 'end_paragraph_id': 9, 'end_character': 513, 'bleu_score': 0.944475589384524, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2011880230651560750}, 'section': 'Section::::Career.:Television.\n'}]}]