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Professional biography Beutel studied law at the University of Mainz from 1968-1976 and then served as a judge in Frankenthal , Koblenz and Mainz .
 Beutel, University of Mainz, Frankenthal, Koblenz, Mainz
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Beutel, University of Mainz, Frankenthal, Koblenz, Mainz