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" Taipei is under a lot of pressure because it faces international competition , " says William Chen , the head of Taipei 's Bureau of Urban Development .
 Taipei, William Chen, Taipei, Bureau of Urban Development
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:
 Taipei, William Chen, Taipei, Bureau of Urban Development