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Security forces said the bombs may have been intended for use in a pre-Christmas bombing campaign by the guerrilla group that is battling to oust Britain from Northern Ireland .
 location: Britain; location: Northern Ireland
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, else, organization, person 
Text: {0} 
Answer:
 location: Britain; location: Northern Ireland