76298
The total length of waterways is estimated at 16,238 " km including the Congo River , its tributaries , and unconnected lakes .
 location: Congo River
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: Congo River 
Answer:
 location: Congo River