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He is also known under the courtesy name ( zì ) of Yifu ( 益甫 ) and his pseudonym ( hào ) of Lengjun ( 冷君 ) , which he changed to Huishu ( 撝叔 ) and Bei'an ( 悲盦 ) respectively later in his life .
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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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