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Samuel Edward Kennedy ( born July 10 , 1964 in San Mateo , California ) is a former professional American football Linebacker in the National Football League .
 Kennedy, San Mateo , California, National Football League
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Kennedy, San Mateo , California, National Football League