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Wei Chengsi ( news director at ATV news in Hong Kong and a former director of policy research in the public relations department of the municipal party committee in Shanghai ) emphasized the fluid nature of Beijing 's policy on Taiwan .
 person: Wei Chengsi; organization: ATV; geographical social political: Hong Kong; geographical social political: Shanghai; geographical social political: Beijing; geographical social political: Taiwan
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: 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:
 person: Wei Chengsi; organization: ATV; geographical social political: Hong Kong; geographical social political: Shanghai; geographical social political: Beijing; geographical social political: Taiwan