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Although Gephardt was ahead in the Iowa caucus throughout early 2003 , Vermont Governor Howard Dean pulled ahead in the polls by August , his campaign fueled by anti-war activists .
 Gephardt, Vermont, Howard Dean
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Gephardt, Vermont, Howard Dean