73517
Plot against Hitler According to Heinrich Himmler 's Chief of Staff , Walter Schellenberg , Erna was also involved in a plot to overthrow Hitler and to sue for peace with the Allies .
 Hitler, Heinrich Himmler, Walter Schellenberg, Erna, Hitler
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Hitler, Heinrich Himmler, Walter Schellenberg, Erna, Hitler