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As of an hour or so ago , we got word from the battlefield that U . S . forces were just 15 miles away from the southern edge of Baghdad .
 U . S, Baghdad, we, U . S . forces, the southern edge of Baghdad
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:
 U . S, Baghdad, we, U . S . forces, the southern edge of Baghdad