90843
His main fields of expertise are modern history of Poland , including the opposition in the communist Poland and the phenomenon of Polonia .
 location: Poland; location: communist 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: Poland, communist Poland 
Answer:
 location: Poland; location: communist Poland