4504
National Taiwan University professor Lee Hung - hsi , an expert on constitutional law , points out that less than 10 % of the Taiwanese population takes part in political party activities .
 National Taiwan University, Lee Hung - hsi, less than 10 %, Taiwanese
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:
 National Taiwan University, Lee Hung - hsi, less than 10 %, Taiwanese