Question: when did the sacramento kings win the nba championship
[{'answer': '1951', 'provenance': [{'wikipedia_id': '72898', 'title': 'Sacramento Kings', 'start_paragraph_id': 2, 'start_character': 671, 'end_paragraph_id': 2, 'end_character': 675, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]