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Some prominent writers , like Ivan Bunin and Vladimir Nabokov left the country , while a new generation of talented writers joined together in different organizations with the aim of creating a new and distinctive working-class culture appropriate for the new state , the Soviet Union .
 person: Ivan Bunin; person: Vladimir Nabokov; location: Soviet Union
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 person: Ivan Bunin; person: Vladimir Nabokov; location: Soviet Union