Question: when did oklahoma city became the capital of oklahoma
[{'answer': '1910', 'provenance': [{'wikipedia_id': '1660962', 'title': 'Oklahoma State Capitol', 'start_paragraph_id': 2, 'start_character': 81, 'end_paragraph_id': 2, 'end_character': 85, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1660962', 'title': 'Oklahoma State Capitol', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 396, 'bleu_score': 0.9699161750394991, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 260532800389797203}, 'section': 'Section::::Abstract.'}]}]