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Sylvain Alex Ovono ( born 26 March 1976 ) is a retired Cameroon ian footballer , who played as a forward .
 Sylvain, Ovono, Cameroon
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Sylvain, Ovono, Cameroon