Question: how many times has michigan won the basketball national championship
[{'answer': 'one NCAA Championship', 'provenance': [{'wikipedia_id': '14291424', 'title': "Michigan Wolverines men's basketball", 'start_paragraph_id': 1, 'start_character': 356, 'end_paragraph_id': 1, 'end_character': 377, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': '14 Big Ten Conference championships'}, {'answer': 'two Big Ten Tournament', 'provenance': [{'wikipedia_id': '14291424', 'title': "Michigan Wolverines men's basketball", 'start_paragraph_id': 1, 'start_character': 471, 'end_paragraph_id': 1, 'end_character': 493, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'two National Invitation Tournaments ( NIT )'}, {'provenance': [{'wikipedia_id': '14291424', 'title': "Michigan Wolverines men's basketball", 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 627, 'bleu_score': 0.8442796395807951, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10310144681630863495}, 'section': 'Section::::Abstract.'}]}]