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The U . S . Army ' s 7th Cavalry has just taken three Iraqi prisoners of war .
 geographical social political: Iraqi; organization: The U . S . Army; organization: The U . S . Army ' s 7th Cavalry; person: three Iraqi prisoners of war
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: organization, person, geographical social political, vehicle, location, weapon, facility 
Text: {0} 
Answer:
 geographical social political: Iraqi; organization: The U . S . Army; organization: The U . S . Army ' s 7th Cavalry; person: three Iraqi prisoners of war