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Ukraine rebel commander Alexander Khodakovsky acknowledges fighters had BUK missile #MH17 http://t.co/coLMEIN4UU http://t.co/D0k30M21SO
 Ukraine, Alexander Khodakovsky
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Ukraine, Alexander Khodakovsky