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At the same time , using natural gas as fuel will also reduce environmental pollution along coastal regions .
 location: coastal; location: coastal regions
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: geographical social political, organization, person, location, facility, vehicle, weapon 
Text: {0} 
Answer:
 location: coastal; location: coastal regions