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The palace was divided into two major sections ; the Kungsŏng ( 궁성 , 宮城 ) , where the king and royal family resided , and the Hwangsŏng ( 황성 , 皇城 ) , where affairs of state were conducted .
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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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