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In 1993 the Welsh tenor Wynford Evans sang " Kalinka " at Cardiff Arms Park Stadium accompanied by the largest ever male choir of 10,000 voices , known as the World Choir .
 Wynford Evans
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Wynford Evans