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He was educated at Sedbergh School , England ( 1967-1972 ) , Dartmouth College ( AB , summa cum laude , Phi Beta Kappa , 1976 ) and Harvard Business School ( MBA 1978 ) .
 Sedbergh School, Dartmouth College, Harvard Business School
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Sedbergh School, Dartmouth College, Harvard Business School