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The Vltava is the country 's longest river , at 430 " km .
 location: Vltava
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: Vltava 
Answer:
 location: Vltava