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Presently , for example , if an accountant 's job involves doing five specific tasks , he or she can expect a certain salary , said Sandra O'Neal , a Towers Perrin principal .
 Towers Perrin, Sandra O'Neal
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, else, organization, person 
Text: {0} 
Answer:
 Towers Perrin, Sandra O'Neal