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U . S . State Department adding security to Baghdad Embassy as some staff members relocate , spokeswoman says . http://t.co/rZhsP1J2p3
 U . S . State Department, Baghdad Embassy
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 U . S . State Department, Baghdad Embassy