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In the latter case , exemplified by the Bulgarian National Bank , Hong Kong and Latvia ( until 2014 ) , the local currency is backed at a fixed rate by the central bank 's holdings of a foreign currency .
 organization: Bulgarian National Bank; location: Hong Kong; location: Latvia
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: Bulgarian National Bank, Hong Kong, Latvia 
Answer:
 organization: Bulgarian National Bank; location: Hong Kong; location: Latvia