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Frankenstein Castle is a medieval fortification on a spur above the village of Frankenstein , Rhineland-Palatinate in the Palatinate Forest in Germany .
 Frankenstein, Frankenstein , Rhineland-Palatinate, Germany
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Frankenstein, Frankenstein , Rhineland-Palatinate, Germany