15164
Its waters belong to the Indian Ocean and both banks are part of the province of West Sumatra .
 location: Indian Ocean; location: West Sumatra
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: Indian Ocean, West Sumatra 
Answer:
 location: Indian Ocean; location: West Sumatra