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She played in both singles rubbers against Stefanie Vögele and Romina Oprandi , winning both matches in straight sets and ensuring that Australia play in the 2014 Fed Cup World Group .
 Stefanie Vögele, Romina Oprandi, Australia
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Stefanie Vögele, Romina Oprandi, Australia