Question: when was the first sanatorium for tuberculosis treatment opened
[{'answer': '1885', 'provenance': [{'wikipedia_id': '938121', 'title': 'Sanatorium', 'start_paragraph_id': 6, 'start_character': 77, 'end_paragraph_id': 6, 'end_character': 81, 'bleu_score': 1.0, 'section': 'Section::::History.:Early establishments.\n'}]}, {'provenance': [{'wikipedia_id': '938121', 'title': 'Sanatorium', 'start_paragraph_id': 6, 'start_character': 0, 'end_paragraph_id': 6, 'end_character': 779, 'bleu_score': 0.9615573284832181, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4338083479574035259}, 'section': 'Section::::History.:Early establishments.\n'}]}]