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Manfred Ach ( born September 14 , 1940 ) is a German politician , representative of the Christian Social Union of Bavaria ( CSU ) .
 Manfred Ach, German, Christian Social Union of Bavaria
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Manfred Ach, German, Christian Social Union of Bavaria