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After the stadium was demolished in 1964 , the obelisk was moved to Robert F. Kennedy Memorial Stadium , where the Washington Nationals played between 2005 and 2007 .
 Robert F. Kennedy Memorial Stadium, Washington Nationals
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Robert F. Kennedy Memorial Stadium, Washington Nationals