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Caroline Wozniacki ( Quarterfinals ) Nadia Petrova ( Third Round ) Maria Kirilenko ( First Round , retired because of a shoulder injury ) Ana Ivanović ( Third Round ) Dominika Cibulková ( withdrew ) Roberta Vinci ( Second Round ) Sloane Stephens ( Second Round ) Lucie Šafářová ( Second Round ) Draw Finals Top Half Section 1 Section 2 Bottom Half Section 3 Section 4 Qualifying Seeds Bethanie Mattek-Sands ( Qualified ) Tadeja Majerič ( Qualified ) Kathrin Wörle ( First round ) Lyudmyla Kichenok ( First round ) Mervana Jugić-Salkić ( Qualifying completion , Lucky Loser ) Ekaterina Bychkova ( Qualified ) Nadiya Kichenok ( Qualified ) Valentyna Ivakhnenko ( Qualifying completion ) Qualifiers Tadeja Majerič Nadiya Kichenok Ekaterina Bychkova Caroline Garcia Lucky Losers Mervana Jugić-Salkić Draw First Qualifier Second Qualifier Third Qualifier Fourth Qualifier Fifth Qualifier Sixth Qualifier Seventh Qualifier Eight Qualifier References
 Caroline Wozniacki, Nadia Petrova, Maria Kirilenko, Ana Ivanović, Dominika Cibulková, Roberta Vinci, Sloane Stephens, Lucie Šafářová, Tadeja Majerič, Kathrin Wörle, Lyudmyla Kichenok, Mervana Jugić-Salkić, Ekaterina Bychkova, Nadiya Kichenok, Valentyna Ivakhnenko, Tadeja Majerič Nadiya Kichenok Ekaterina Bychkova Caroline Garcia, Mervana Jugić-Salkić
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Caroline Wozniacki, Nadia Petrova, Maria Kirilenko, Ana Ivanović, Dominika Cibulková, Roberta Vinci, Sloane Stephens, Lucie Šafářová, Tadeja Majerič, Kathrin Wörle, Lyudmyla Kichenok, Mervana Jugić-Salkić, Ekaterina Bychkova, Nadiya Kichenok, Valentyna Ivakhnenko, Tadeja Majerič Nadiya Kichenok Ekaterina Bychkova Caroline Garcia, Mervana Jugić-Salkić