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Before joining Moet Hennessy , Jon Potter was a former field hockey player , who was a member of the golden winning British squad at the 1988 Summer Olympics in Seoul .
 Jon Potter, British, Seoul
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Jon Potter, British, Seoul