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The Hai Van Tunnel , the longest tunnel in Southeast Asia at 6.28 km , lies on highway 1 between the two cities of Danang and Huế in central Vietnam .
 location: Southeast Asia; location: Danang; location: Huế; location: Vietnam
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: Southeast Asia, Danang, Huế, Vietnam 
Answer:
 location: Southeast Asia; location: Danang; location: Huế; location: Vietnam