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Frederick Middlebush ( October 15 , 1890 - June 8 , 1971 ) was an American educator and thirteenth president of the University of Missouri in Columbia , Missouri from 1935-1954 .
 Frederick Middlebush, University of Missouri, Columbia , Missouri
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Frederick Middlebush, University of Missouri, Columbia , Missouri