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: "how old was george blanda when he retired from the oakland raiders?" whose answer is 48.
Each document should contain about 30 words, and these documents should contain useful information.

Query: George Blanda retirement age Oakland Raiders
Useful Output:

Doc 1: George Blanda, who played a record 26 years in professional football and didn't retire from the NFL until the age of 48, is best remembered for his nine-year
Doc 2: George Blanda retired at the age of 48, just before the start of the 1976 NFL season. The Sporting News: “He (Blanda) never got older; he just
Doc 3: George Blanda Dies at Age 83: Oakland Raiders Lose Another Hall of Famer  Enjoy a pain-free retirement, Georgewe'll miss you. Video
Doc 4: Blanda finished his career with the Raiders, playing for them from 1967 until his retirement, at 48, just before the 1976 season. Elected to the
Doc 5: He played his final NFL game on 4 January 1976, at the age of 48 years, 109 days, a record that still stands. Blanda intended to keep playing,