You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "who has the most nba rings as a player?" whose answer is Bill Russell.
Each document should contain about 30 words, and these documents should contain useful information.

Query: most nba rings player
Useful Output:

Doc 1: Boston Celtics center Bill Russell holds the record for the most NBA championships won with 11 titles during his 13-year playing career.
Doc 2: Russell is, quite simply, the greatest winner in NBA history and arguably in all of team sports. He won a record 11 championships, went 10-0 in
Doc 3: Comments. 992. Steve Kerr: 5 Championship rings as a player and 4 as a coach. That's 9 rings total. Only Phil Jackson has a more impressive
Doc 4: List of NBA players with most championships Who are the NBA players with the most championship rings? In this video, we break down the
Doc 5: NBA Players With the Most Championship Rings · 1 Bill Russell · 2 Sam Jones · 3 John Havlicek, Tom Heinsohn, K.C. Jones, and Tom Sanders · 4