13569
he was escorted into iraq tuesday by u . s . marines .
 iraq, u . s, he, u . s . marines
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, u . s, he, u . s . marines