Question: when was the north dakota state capitol built
[{'answer': 'between 1931 and 1934', 'provenance': [{'wikipedia_id': '3598264', 'title': 'North Dakota State Capitol', 'start_paragraph_id': 5, 'start_character': 116, 'end_paragraph_id': 5, 'end_character': 137, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}, {'provenance': [{'wikipedia_id': '3598264', 'title': 'North Dakota State Capitol', 'start_paragraph_id': 5, 'start_character': 0, 'end_paragraph_id': 5, 'end_character': 667, 'bleu_score': 0.8928770109462381, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4678067471382409013}, 'section': 'Section::::History.\n'}]}]