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The Games were marred by the death of South Korea n equestrian rider Kim Hyung-chil in a fatal accident during competition .
 South Korea, Kim Hyung-chil
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 South Korea, Kim Hyung-chil