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Khim Prom ( ) , is a chemical factory located in Kharkiv Oblast about from the city of Pervomaiskyi , Ukraine .
 Kharkiv Oblast, Pervomaiskyi, Ukraine
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Kharkiv Oblast, Pervomaiskyi, Ukraine