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He was released by the Washington Nationals on August 25 , 2006 , and signed with the Los Angeles Dodgers , but was released from them on March 11 , 2007 .
 Washington Nationals, Los Angeles Dodgers
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Washington Nationals, Los Angeles Dodgers