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The first telephone exchange was opened in Zagreb ( 8 January 1881 ) , the second was in Budapest ( 1 May 1881 ) , and the third was opened in Vienna ( 3 June 1881 ) .
 location: Zagreb; location: Budapest; location: Vienna
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: Zagreb, Budapest, Vienna 
Answer:
 location: Zagreb; location: Budapest; location: Vienna