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He was for a while in Styria , at Bad Gleichenberg , a stay which , George Călinescu believes , may have been the result of a medical recommendation to help him counter excessive nervousness .
 Styria, Bad Gleichenberg, George Călinescu
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Styria, Bad Gleichenberg, George Călinescu