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Russian troops began to pull out from southern Chechnya on Sunday under a ceasefire agreement between Russian security chief Alexander Lebed and rebel leaders .
 location: Chechnya; person: Alexander Lebed; else: Russian; else: Russian
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, else, organization, person 
Text: {0} 
 Entities: Chechnya, Alexander Lebed, Russian, Russian 
Answer:
 location: Chechnya; person: Alexander Lebed; else: Russian; else: Russian