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John J. Pruis ( born December 13 , 1923 ) is best known as being a president of Ball State University as well as having a building dedicated in his name on the campus .
 Pruis, Ball State University
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Pruis, Ball State University