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Daniel R. Mandelker is the Howard A. Stamper Professor of Law at the Washington University in St. Louis School of Law .
 Daniel R. Mandelker, Law, Washington University in St. Louis School of Law
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Daniel R. Mandelker, Law, Washington University in St. Louis School of Law