318334
It has a population of about 200,000 and is situated on the Congo River at an altitude of about 500 metres , and is about 400 km west of Bukavu .
 Congo, Bukavu
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Congo, Bukavu