Question: when did madison became the capital of wisconsin
[{'answer': '1848', 'provenance': [{'wikipedia_id': '57863', 'title': 'Madison, Wisconsin', 'start_paragraph_id': 12, 'start_character': 343, 'end_paragraph_id': 12, 'end_character': 347, 'bleu_score': 1.0, 'section': 'Section::::History.:Expansion.\n'}]}]