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A significant proportion of the Mekong delta is now under water .
 location: A significant proportion of the Mekong delta; location: the Mekong delta
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: A significant proportion of the Mekong delta; location: the Mekong delta