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He worked briefly as an assistant professor of the English language at Arkansas Tech University before joining Mississippi State University as an assistant professor .
 organization: Arkansas Tech University; organization: Mississippi State University
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: Arkansas Tech University, Mississippi State University 
Answer:
 organization: Arkansas Tech University; organization: Mississippi State University