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Political career Liao Feng-teh worked as the director of the office of the then Vice President of the Republic of China Lien Chan from 1997 until 1999 .
 Liao Feng-teh, Lien Chan
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Liao Feng-teh, Lien Chan