Question: who got the most rings in the nba
[{'answer': 'Bill Russell', 'provenance': [{'wikipedia_id': '10110325', 'title': 'List of NBA players with most championships', 'start_paragraph_id': 2, 'start_character': 22, 'end_paragraph_id': 2, 'end_character': 34, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '10110325', 'title': 'List of NBA players with most championships', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 1117, 'bleu_score': 0.8952127513580991, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5837027003407285042}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '10110325', 'title': 'List of NBA players with most championships', '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': 5837027003407285042}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '10110325', 'title': 'List of NBA players with most championships', 'section': 'Section::::Abstract.', 'start_paragraph_id': 2, 'end_paragraph_id': 2, 'meta': {'evidence_span': ['Boston Celtics center Bill Russell holds the record for the most NBA championships won with 11 titles during his 13-year playing career.', 'Boston Celtics center Bill Russell holds the record for the most NBA championships won with 11 titles during', "Boston Celtics center Bill Russell holds the record for the most NBA championships won with 11 titles during his 13-year playing career. He won his first championship with the Boston Celtics in his rookie year. Afterwards, he went on to win ten championships in the next 12 years, including eight consecutive championships from 1959 to 1966. He won the last two championships in 1968 and 1969 as player-coach. Russell's teammate, Sam Jones, won ten championships from 1959 to 1969, the second most in NBA history. Four Celtics players, Tom Heinsohn, K. C. Jones, Satch Sanders and John Havlicek, won eight championships each, with Havlicek being the only one to win championships independently of Russell."]}}]}]