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Brian Frederick Gilbert Johnson ( born 11 September 1938 - Northampton UK ) is a British scientist and former professor of chemistry at Cambridge University .
 person: Brian; person: Johnson; organization: Cambridge 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: Brian, Johnson, Cambridge University 
Answer:
 person: Brian; person: Johnson; organization: Cambridge University