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Some Arab countries also want to play a role in the stability operation in Iraq but are reluctant to send troops because of political , religious and ethnic considerations , the official said .
 Some Arab countries, Iraq, Arab, troops, the official
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:
 Some Arab countries, Iraq, Arab, troops, the official