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In 1880 Ulcinj was occupied by Great Power forces and had been given to Principality of Montenegro .
 location: Ulcinj; location: Principality of Montenegro
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: Ulcinj, Principality of Montenegro 
Answer:
 location: Ulcinj; location: Principality of Montenegro