82698
In 1913 , the Russian Empire also began the construction of the four-ship , which were designed for service in the Baltic Sea .
 location: Russian Empire; location: Baltic Sea
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, Baltic Sea 
Answer:
 location: Russian Empire; location: Baltic Sea