2658
On May 19 , 2004 , after major reconstruction , the airport received its first commercial flight from Hanoi .
 location: Hanoi
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: Hanoi 
Answer:
 location: Hanoi