5095
He sought to acquire control of the Baltic Sea , which had been taken by the Swedish Empire a half-century earlier .
 location: Baltic Sea; location: Swedish Empire
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: Baltic Sea; location: Swedish Empire