62218
He has also written the first academic student book about Finland 's economic history ( 1975 ) , two books about North American Indians , and a work on Ostrobothnia ( 1997 ) and a biography of the musician Heikki Klemetti ( 2004 ) .
 location: Ostrobothnia
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: Ostrobothnia 
Answer:
 location: Ostrobothnia