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Later he taught at the University of Cambridge , where he was Dean of King 's College and supervised the doctorate of David Nicholls .
 Cambridge, King 's College, David Nicholls
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Cambridge, King 's College, David Nicholls