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Ronald Owen Hall , CMG MC & Bar , known in Chinese as 何明華 ( Mandarin Chinese : He Minghua ; Cantonese : Ho Ming Wah ) was an Anglican missionary bishop in Hong Kong and China in the mid 20th century .
 Ronald, 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:
 Ronald, Hong Kong