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Winifred Ellen " Winnie " Silverthorne ( 3 March 1925 – 7 March 1998 ) was a British pair skater who competed with her brother Dennis Silverthorne .
 Winifred, Silverthorne, British, Dennis Silverthorne
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Winifred, Silverthorne, British, Dennis Silverthorne