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In 2005 , Bulgaria had 2,425 kilometers of natural gas pipelines , 339 kilometers of oil pipelines , and 156 kilometers of pipelines for refined products .
 location: Bulgaria
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: Bulgaria 
Answer:
 location: Bulgaria