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Much of Siberia 's population has its origins in internal migration – voluntary or otherwise – from European Russia since the 16th century .
 location: Siberia; location: European Russia
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 location: Siberia; location: European Russia