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Thereafter he worked for the Commonwealth Secretariat from 1990 – 2008 , holding the posts of Director , Economic Affairs Division and Deputy-Director , Secretary-General 's Office and was brought back to the Commonwealth Secretariat to head the Social Transformation Programme Division , as Interim Director .
 Commonwealth Secretariat, Commonwealth Secretariat
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Commonwealth Secretariat, Commonwealth Secretariat