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LaFollette is named for Dr. Robert LaFollette , who was a social science professor and department head at Ball State University from 1921 to 1961 .
 organization: Ball
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: Ball 
Answer:
 organization: Ball