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In May 1938 he gave a speech against Adolf Hitler and Benito Mussolini , when the latter was visiting Naples .
 Adolf Hitler, Benito Mussolini, Naples
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Adolf Hitler, Benito Mussolini, Naples