Question: when did charleston become the capital of west virginia
[{'answer': '1877', 'provenance': [{'wikipedia_id': '57861', 'title': 'Charleston, West Virginia', 'start_paragraph_id': 93, 'start_character': 201, 'end_paragraph_id': 93, 'end_character': 205, 'bleu_score': 1.0, 'section': 'Section::::History.:Political growth.\n'}]}, {'provenance': [{'wikipedia_id': '57861', 'title': 'Charleston, West Virginia', 'start_paragraph_id': 93, 'start_character': 0, 'end_paragraph_id': 93, 'end_character': 501, 'bleu_score': 0.9731482306711111, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10442279192130936135}, 'section': 'Section::::History.:Political growth.\n'}]}]