Question: when's the last time the vikings were in the playoffs
[{'answer': '2015', 'provenance': [{'wikipedia_id': '20134', 'title': 'Minnesota Vikings', 'start_paragraph_id': 64, 'start_character': 836, 'end_paragraph_id': 64, 'end_character': 840, 'bleu_score': 1.0, 'section': 'Section::::History.:2000s.:2014–present.\n'}]}]