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Mazrui has also been a Visiting Scholar at Stanford University , The University of Chicago , Colgate University , McGill University , National University of Singapore , Oxford University , Harvard University , Bridgewater State College , Ohio State University , and at other institutions in Cairo , Australia , Leeds , Nairobi , Teheran , Denver , London , Baghdad , and Sussex , amongst others .
 Mazrui, Stanford University, University of Chicago, Colgate University, McGill University, National University of Singapore, Oxford, Harvard University, Bridgewater State College, Ohio State University, Cairo, Australia, Leeds, Nairobi, Teheran, Denver, London, Baghdad, Sussex
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Mazrui, Stanford University, University of Chicago, Colgate University, McGill University, National University of Singapore, Oxford, Harvard University, Bridgewater State College, Ohio State University, Cairo, Australia, Leeds, Nairobi, Teheran, Denver, London, Baghdad, Sussex