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At the beginning he studied music on his own , until he took private lessons from the professor Vladimír Hora ( 1987 – 1989 ) and in 1998 till 1999 he continued his music education under the supervision of Prof. Hora at the Conservatory of Jaroslav Ježek in Prague , where he in addition to playing the bass guitar took also singing lessons .
 location: Prague
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: Prague 
Answer:
 location: Prague