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He was an assistant football coach at Pace University ( 1973 – 1974 ) , the University of Pennsylvania ( 1979 – 1980 ) , the University of Delaware ( 1989 ) and the University of Massachusetts Amherst ( 1991 ) .
 Pace University, University of Pennsylvania, University of Delaware, University of Massachusetts Amherst
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 Pace University, University of Pennsylvania, University of Delaware, University of Massachusetts Amherst