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Kratero ( , Macedonian Slavic and , Rakovo ) is a village located in the Florina regional unit of northwestern Macedonia , Greece .
 Kratero, Florina regional unit, Macedonia, Greece
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Kratero, Florina regional unit, Macedonia, Greece