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The women 's singles draw included two top 20 players : Dubai champion Venus Williams and Flavia Pennetta , who has reached the final of this event the last five years and won it twice .
 Venus Williams, Flavia Pennetta
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Venus Williams, Flavia Pennetta