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These bodies have been flowing into Lake Victoria causing a health hazard along the Akagera River course through Tanzania and Uganda .
 Akagera River, Tanzania; Akagera River, Uganda
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; word3, word4". 
Option: Organization based in, Located in, Live in, Work for, Kill 
Text: {0} 
Answer:
 Akagera River, Tanzania; Akagera River, Uganda