Question: when was last time michigan beat ohio state in football
[{'answer': '2011', 'provenance': [{'wikipedia_id': '3280664', 'title': 'Michigan–Ohio State football rivalry', 'start_paragraph_id': 43, 'start_character': 469, 'end_paragraph_id': 43, 'end_character': 473, 'bleu_score': 1.0, 'section': 'Section::::Series history.:A carousel of coaches (2008–2014).\n'}]}]