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The show founders through out-of-town tryouts in Boston and Philadelphia along with a surprise run in Washington , D. C. as the major players continue to jockey for position and power .
 Boston, Philadelphia, Washington , D. C.
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Boston, Philadelphia, Washington , D. C.