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6 : 03 a . m . eastern time , seven americans who had been prisoners of war in iraq make a public appearance at the medical center in germany .
 iraq, germany, seven americans, who, prisoners of war in iraq, the medical center in germany
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: organization, person, geographical social political, vehicle, location, weapon, facility 
Text: {0} 
Answer:
 iraq, germany, seven americans, who, prisoners of war in iraq, the medical center in germany