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History Under the leadership of college librarian Azariah Smith Root ( 1887 – 1927 ) , the Oberlin College Library grew by the end of his tenure to the sixteenth largest academic library in the nation .
 organization: Oberlin
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Oberlin 
Answer:
 organization: Oberlin