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Military career Boer War Colston was commissioned into the Grenadier Guards in 1900 , and served with the 2nd Battalion in the Second Boer War 1901 – 02 , during which he was wounded .
 person: Colston; organization: Grenadier Guards; person: 2nd
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: Colston, Grenadier Guards, 2nd 
Answer:
 person: Colston; organization: Grenadier Guards; person: 2nd