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Xinhua News Agency , Phnom Penh , April 23rd , by reporters Heping Xing and Ximei Cai
 Phnom Penh, Xinhua News Agency, reporters, Heping Xing and Ximei Cai
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: geographical social political, organization, person, location, facility, vehicle, weapon 
Text: {0} 
Answer:
 Phnom Penh, Xinhua News Agency, reporters, Heping Xing and Ximei Cai