Question: when did baton rouge become the capital of louisiana
[{'answer': '1846', 'provenance': [{'wikipedia_id': '57835', 'title': 'Baton Rouge, Louisiana', 'start_paragraph_id': 14, 'start_character': 159, 'end_paragraph_id': 14, 'end_character': 163, 'bleu_score': 1.0, 'section': 'Section::::History.:Modern history.\n'}]}, {'provenance': [{'wikipedia_id': '57835', 'title': 'Baton Rouge, Louisiana', 'start_paragraph_id': 14, 'start_character': 154, 'end_paragraph_id': 14, 'end_character': 761, 'bleu_score': 0.8522558291396821, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4862569745274162350}, 'section': 'Section::::History.:Modern history.\n'}]}]