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Qichen Qian also made a comment on the fact that beginning this year , the Taiwan authorities continued to practice the so - called " practical diplomacy " , advocated that Taiwan was a so - called " independent sovereign state " , and actively set up obstacles in the negotiations between both sides of the straits .
 Qichen Qian, year, Taiwan, Taiwan
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: date, organization, person, geographical social political, national religious political, facility, cardinal, location, work of art, law, event, product, ordinal, percent, time, quantity, money, language 
Text: {0} 
Answer:
 Qichen Qian, year, Taiwan, Taiwan