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Kowloon Tong is one of the 22 constituencies in the Kowloon City District in Hong Kong .
 Kowloon Tong, Kowloon City District, Hong Kong
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Kowloon Tong, Kowloon City District, Hong Kong