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The WTA Tour is the elite tour for professional women 's tennis organised by the Women 's Tennis Association ( WTA ) .
 WTA Tour, Women 's Tennis Association, WTA
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 WTA Tour, Women 's Tennis Association, WTA