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However , as a result of Vera Zvonareva and Samantha Stosur 's inability to go past the third round , she was able to qualify for the 2011 WTA Tour Championships for the first time in her career .
 person: Vera Zvonareva; person: Samantha Stosur
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 person: Vera Zvonareva; person: Samantha Stosur