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At present , the actual investment of Hong Kong merchants in Shenzhen has added up to nearly 7 billion US dollars , accounting for 65 % of the total amount of Shenzhen 's actually utilized foreign investment .
 Hong Kong, Shenzhen, 7 billion US dollars, 65 %, Shenzhen
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:
 Hong Kong, Shenzhen, 7 billion US dollars, 65 %, Shenzhen