41136
The natural landmarks are : Sankosh and Brahmaputra rivers on the west , the Manas river on the east in the north bank , and a corresponding region in the south bank ; the Garo Hills in the south and Bhutan Hills in the north .
 location: Bhutan
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: Bhutan 
Answer:
 location: Bhutan