19936
' '' Rikard Bergh '' ' ' '' Jan Gunnarsson '' ' 6–4 , 4–6 , 6–3
 Rikard Bergh, Jan Gunnarsson
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Rikard Bergh, Jan Gunnarsson