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Legitimacy undergirds societal order , and President Trump has done more to undermine governmental legitimacy than to strengthen it , according to {@University of Pennsylvania Carey Law School@} ' s Cary Coglianese . {{URL}}
 President Trump, University of Pennsylvania Carey Law School, Cary Coglianese
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: group, creative work, person, event, product, location, corporation 
Text: {0} 
Answer:
 President Trump, University of Pennsylvania Carey Law School, Cary Coglianese