Question: when did the crazy horse memorial project began
[{'answer': 'October 1931', 'provenance': [{'wikipedia_id': '19594492', 'title': 'Crazy Horse Memorial', 'start_paragraph_id': 7, 'start_character': 272, 'end_paragraph_id': 7, 'end_character': 284, 'bleu_score': 1.0, 'section': 'Section::::History of the monument.\n'}]}, {'provenance': [{'wikipedia_id': '19594492', 'title': 'Crazy Horse Memorial', 'start_paragraph_id': 7, 'start_character': 0, 'end_paragraph_id': 7, 'end_character': 1063, 'bleu_score': 0.9803313477060441, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2058705796307844094}, 'section': 'Section::::History of the monument.\n'}]}]