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John Mark Ramseyer ( born c. 1953 ) is Mitsubishi Professor of Japanese Legal Studies at Harvard Law School and a leading scholar on the subjects of Japanese Law and Law and Economics .
 Mark Ramseyer, Harvard Law School, Law, 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:
 Mark Ramseyer, Harvard Law School, Law, Law