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He has performed with many of the leading Czech orchestras including the Janacek Philharmonic Orchestra in Ostrava in May 2007 .
 location: Czech; location: Ostrava
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: Czech, Ostrava 
Answer:
 location: Czech; location: Ostrava