84235
The Russian Empire , which had withdrawn from the war in 1917 after the October Revolution , lost much of its western frontier as the newly independent nations of Estonia , Finland , Latvia , Lithuania , and Poland were carved from it .
 location: Russian Empire; location: Estonia; location: Finland; location: Latvia; location: Lithuania; location: Poland
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Russian Empire, Estonia, Finland, Latvia, Lithuania, Poland 
Answer:
 location: Russian Empire; location: Estonia; location: Finland; location: Latvia; location: Lithuania; location: Poland