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The commander of Russian troops in Chechnya , Vyacheslav Tikhomirov , and Chechen rebel chief-of-staff Aslan Mashadov signed the deal under which the troop withdrawal is to resume on Wednesday .
 Russian, Chechnya, Chechen, Vyacheslav Tikhomirov, Aslan Mashadov
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, else, organization, person 
Text: {0} 
Answer:
 Russian, Chechnya, Chechen, Vyacheslav Tikhomirov, Aslan Mashadov