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It was formed on 6 March 1915 as the 2/2nd Mounted Division a replacement/depot formation for the 2nd Mounted Division which was being sent abroad on active service .
 organization: Mounted; organization: 2nd Mounted Division
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: Mounted, 2nd Mounted Division 
Answer:
 organization: Mounted; organization: 2nd Mounted Division