4780
' '' Piet Norval '' ' ' '' Kevin Ullyett '' '7–5 , 6–3
 Piet Norval, Kevin Ullyett
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Piet Norval, Kevin Ullyett