Question: when did villanova win the national basketball championship
[{'answer': '1985', 'provenance': [{'wikipedia_id': '9559549', 'title': "Villanova Wildcats men's basketball", 'start_paragraph_id': 2, 'start_character': 61, 'end_paragraph_id': 2, 'end_character': 65, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': '2016', 'provenance': [{'wikipedia_id': '9559549', 'title': "Villanova Wildcats men's basketball", 'start_paragraph_id': 2, 'start_character': 67, 'end_paragraph_id': 2, 'end_character': 71, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': '2018', 'provenance': [{'wikipedia_id': '9559549', 'title': "Villanova Wildcats men's basketball", 'start_paragraph_id': 2, 'start_character': 77, 'end_paragraph_id': 2, 'end_character': 81, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]