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Vaněk z Jenštejna , son of Pavel z Jenštejna , was owner of castle Bradlec and Staré Hrady near Jičín .
 z, z, Jičín
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 z, z, Jičín