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MLS Spencer was drafted 55th in the 2008 MLS Superdraft by New England Revolution , but was later waived and selected by FC Dallas .
 Spencer, New England Revolution, FC Dallas
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Spencer, New England Revolution, FC Dallas