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She later earned an M.F.A at Columbia University in 1975 , where she studied with Ronald Bladen and George Sugarman .
 organization: Columbia University; person: George Sugarman
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: Columbia University, George Sugarman 
Answer:
 organization: Columbia University; person: George Sugarman