203863
He was retired to stud in 1910 and was soon afterwards exported to Russia , where he disappeared during the Revolution in 1917 .
 location: Russia
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: Russia 
Answer:
 location: Russia