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The out-of-uniform soldiers were shot by the Provisional Irish Republican Army ( IRA ) , after they drove into the funeral procession of an IRA volunteer .
 organization: Provisional Irish Republican Army
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: Provisional Irish Republican Army 
Answer:
 organization: Provisional Irish Republican Army