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While paying a visit to Columbia University , he met Isidor Isaac Rabi , who sparked in him an interest in recent discoveries related to the hyperfine structure of deuterium .
 organization: Columbia University; person: Isidor Isaac Rabi
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 organization: Columbia University; person: Isidor Isaac Rabi