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In October 2010 David O'Sullivan was made the last Director General of RELEX ( as he then became the first the chief operating officer of the EEAS ) and the Deputy Director General was Karel Kovanda ( 2008 ) .
 David O'Sullivan
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 David O'Sullivan