Question: when was the last time vikings won at lambeau
[{'answer': 'December 23 , 2017'}, {'provenance': [{'wikipedia_id': '30314274', 'title': 'Packers–Vikings rivalry', 'start_paragraph_id': 22, 'start_character': 0, 'end_paragraph_id': 22, 'end_character': 120, 'bleu_score': 0.704959260832239, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17723023473817125043}, 'section': 'Section::::Notable moments and games.\n'}]}]