Question: when did salt lake city became the capital of utah
[{'answer': '1856', 'provenance': [{'wikipedia_id': '1080702', 'title': 'History of Salt Lake City', 'start_paragraph_id': 8, 'start_character': 256, 'end_paragraph_id': 8, 'end_character': 260, 'bleu_score': 1.0, 'section': 'Section::::Early years.\n'}]}, {'provenance': [{'wikipedia_id': '1080702', 'title': 'History of Salt Lake City', 'start_paragraph_id': 8, 'start_character': 0, 'end_paragraph_id': 8, 'end_character': 400, 'bleu_score': 0.9731482306711111, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3330554561459410230}, 'section': 'Section::::Early years.\n'}]}]