Question: when was the last time the niners won a game
[{'answer': '2012', 'provenance': [{'wikipedia_id': '27169', 'title': 'San Francisco 49ers', 'start_paragraph_id': 72, 'start_character': 3, 'end_paragraph_id': 72, 'end_character': 7, 'bleu_score': 1.0, 'section': 'Section::::Franchise history.:2011–2014: Jim Harbaugh era.\n'}]}]