4943
Obama : Not our place to choose Iraq 's leader . U . S . not returning to combat role in Iraq . http://t.co/Ajs13jOP0m
 Obama, Iraq, U . S ., Iraq
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Obama, Iraq, U . S ., Iraq