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History Origins The Transvaal Horse Artillery was formed on 17 March 1904 as Lys ' Volunteer Corps ( after its first commanding officer , Major Godfrey Lys ) and was a regiment dependent on horse transport from the start .
 organization: Transvaal Horse Artillery
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: Transvaal Horse Artillery 
Answer:
 organization: Transvaal Horse Artillery