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Rangers are a type of light infantry that had seen service in the British Army during the French and Indian War , although in the event the KOR served as garrison troops for the duration .
 organization: Rangers
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: Rangers 
Answer:
 organization: Rangers