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Afghanistan CEPPS participated in a contract with USAID starting in 2003 and terminating in 2011 concerning the " Strengthening of elections and political process . "
 USAID, Strengthening
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 USAID, Strengthening