354739
Hermann 's son Bernard I was named as the new Duke of Saxony by Otto I 's son Otto II , the new Holy Roman Emperor .
 Hermann, Bernard I, Saxony, Otto, Otto II, Holy, Emperor
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Hermann, Bernard I, Saxony, Otto, Otto II, Holy, Emperor