Question: who plays in big 10 basketball championship game
[{'answer': 'Michigan', 'provenance': [{'wikipedia_id': '53379348', 'title': "2018 Big Ten Conference Men's Basketball Tournament", 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 8, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Purdue', 'provenance': [{'wikipedia_id': '53379348', 'title': "2018 Big Ten Conference Men's Basketball Tournament", 'start_paragraph_id': 2, 'start_character': 18, 'end_paragraph_id': 2, 'end_character': 24, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '53379348', 'title': "2018 Big Ten Conference Men's Basketball Tournament", 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 187, 'bleu_score': 0.929712191543383, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16298693391256321644}, 'section': 'Section::::Abstract.'}]}]