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Nedda Casei ( born September 9 , 1932 ) is an operatic mezzo-soprano .
 person: Nedda Casei
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: Nedda Casei 
Answer:
 person: Nedda Casei