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After a season on the Oakland Raiders and Cleveland Browns ' practice squads in 1999 , he attended the Seattle Seahawks ' training camp in 2000 .
 organization: Oakland Raiders; organization: Cleveland Browns; organization: Seattle Seahawks
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 organization: Oakland Raiders; organization: Cleveland Browns; organization: Seattle Seahawks