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Published in February 2001 , Dalin 's essay ( later expanded into the book ) concluded that Pius XII was a Righteous Gentile who saved hundreds of thousands of lives during the Holocaust .
 Dalin, Pius XII
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Dalin, Pius XII