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From BBC News : A retired Italian doctor has revealed for the first time how he invented a fictitious disease which fooled the Nazis during World War II .
 Italian, BBC News, A retired Italian doctor, he, the Nazis
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: organization, person, geographical social political, vehicle, location, weapon, facility 
Text: {0} 
Answer:
 Italian, BBC News, A retired Italian doctor, he, the Nazis