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It is not far from Charleville-Mézières , Sedan ( the largest medieval castle in Europe ) , Rocroi , Reims ( where the kings of France were crowned ) , Châlons-en-Champagne , and Varennes-en-Argonne ( where Louis XVI was arrested during the French Revolution ) .
 Charleville-Mézières, Sedan, Europe, Rocroi, Reims, Châlons-en-Champagne, Varennes-en-Argonne
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Charleville-Mézières, Sedan, Europe, Rocroi, Reims, Châlons-en-Champagne, Varennes-en-Argonne