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Karel Sabina ( pen name s include Arian Želinský and Leo Blass ) , ( 29 December 1813 – 8 November 1877 ) was a Czech writer and journalist .
 Karel Sabina
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Karel Sabina