Question: who did virginia cavaliers lose to this year
[{'answer': 'No. 18 West Virginia'}, {'answer': 'Virginia Tech'}, {'answer': 'UMBC', 'provenance': [{'wikipedia_id': '55747042', 'title': "2017–18 Virginia Cavaliers men's basketball team", 'start_paragraph_id': 3, 'start_character': 280, 'end_paragraph_id': 3, 'end_character': 284, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]