6466
The area ’s extensive wetland habitats are the product of the annual Mekong maximum , the simultaneous wet season and the drainage paths of a number of minor rivers .
 location: Mekong
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: Mekong 
Answer:
 location: Mekong