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Then , he played another season in Radomiak Radom before returning to Bosnia , to FK Kozara Gradiška .
 Radomiak Radom, Bosnia, FK Kozara Gradiška
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Radomiak Radom, Bosnia, FK Kozara Gradiška