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Six European countries have agreed to contribute troops to the British and Polish sectors to create an international stability force , the official said .
 Six European countries, European, British, Polish, the British and Polish sectors, an international stability force, 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:
 Six European countries, European, British, Polish, the British and Polish sectors, an international stability force, troops, the official