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Geodeulji is attached to dangui ( a ceremonial jacket ) or jangot ( 장옷 , a headgear ) to cover hands because showing hands in front of seniors was considered not a courtesy during the Korean Joseon Dynasty .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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