Question: when was the last time ohio state won a national championship in basketball
[{'answer': '1960', 'provenance': [{'wikipedia_id': '10333167', 'title': "Ohio State Buckeyes men's basketball", 'start_paragraph_id': 3, 'start_character': 49, 'end_paragraph_id': 3, 'end_character': 53, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]