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It was written by Bepi de Marzi in 1958 , when he was 23 years old : he dedicated the song to his friend Bepi Bertagnoli who died in 1951 while climbing Mount Piatta in the upper Valle del Chiampo .
 None
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:  
Answer:
 None