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Artistes 512 Fund Raising Campaign ( Chinese : 演藝界512關愛行動 ) was a major fund raising campaign held in Hong Kong for the victims of the 2008 Sichuan earthquake .
 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:
 Hong Kong