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In 2008 , 47.6 % of Croatia 's primary energy production structure comprised use of natural gas ( 47.7 % ) , crude oil ( 18.0 % ) , fuel wood ( 8.4 % ) , hydro power ( 25.4 % ) and other renewable energy sources ( 0.5 % ) .
 location: Croatia
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: Croatia 
Answer:
 location: Croatia