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Shortly after becoming aware of the alliance treaty between Peru and Bolivia , Chile declared war on both countries in April 1879 .
 location: Peru; location: Bolivia; location: Chile
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: Peru, Bolivia, Chile 
Answer:
 location: Peru; location: Bolivia; location: Chile