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In November 1993 , he joined RM ( a British educational computing company ) as a non-executive director and in October 1994 became the non-executive Chairman .
 organization: RM; location: British
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: RM, British 
Answer:
 organization: RM; location: British