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After completing his studies at the Herzliya Gymnasia , he travelled to Germany and , in 1929 , obtained a doctorate in mathematics from the University of Göttingen .
 Herzliya Gymnasia, Germany, University of Göttingen
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Herzliya Gymnasia, Germany, University of Göttingen