Question: when did the winchester house open to the public
[{'answer': '1923', 'provenance': [{'wikipedia_id': '268137', 'title': 'Winchester Mystery House', 'start_paragraph_id': 10, 'start_character': 755, 'end_paragraph_id': 10, 'end_character': 759, 'bleu_score': 1.0, 'section': 'Section::::Inspiration.\n'}]}, {'provenance': [{'wikipedia_id': '268137', 'title': 'Winchester Mystery House', 'start_paragraph_id': 10, 'start_character': 0, 'end_paragraph_id': 10, 'end_character': 883, 'bleu_score': 0.9867102250666441, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17664582562470690823}, 'section': 'Section::::Inspiration.\n'}]}]