Question: who has the oldest team in the nba
[{'answer': 'New York Knickerbockers', 'provenance': [{'wikipedia_id': '22093', 'title': 'National Basketball Association', 'start_paragraph_id': 6, 'start_character': 241, 'end_paragraph_id': 6, 'end_character': 264, 'bleu_score': 1.0, 'section': 'Section::::History.:Creation and BAA–NBL merger (1946–1956).\n'}]}, {'answer': 'Sacramento Kings'}, {'provenance': [{'wikipedia_id': '22093', 'title': 'National Basketball Association', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 0, 'bleu_score': 1.0, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7097309245366827939}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '22093', 'title': 'National Basketball Association', 'start_paragraph_id': 6, 'start_character': 0, 'end_paragraph_id': 6, 'end_character': 1222, 'bleu_score': 0.958038364590545, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7097309245366827939}, 'section': 'Section::::History.:Creation and BAA–NBL merger (1946–1956).\n'}]}, {'provenance': [{'wikipedia_id': '72898', 'title': 'Sacramento Kings', 'section': 'Section::::Abstract.', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 548, 'bleu_score': 0.9610816731723411}]}]