49069
According to research by foreign-born , the city 's China population had increased by 69 % between 2000 and 2016 to constitute nearly 20 % of Philadelphia 's work force , and had doubled between 1990 and 2017 to constitute 13.8 % of the city 's total population , with the top five countries of origin being Dominican Republic by a significant margin , followed by the Jamaica , India , Vietnam , and Black American .
 China, Philadelphia, Dominican Republic, Jamaica, India, Vietnam
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 China, Philadelphia, Dominican Republic, Jamaica, India, Vietnam