It main tributaries are Xuka, Mgwali, Dutywa and Mnyolo rivers.

Entity and relation annotations:
id: 0
type: entity
value: text: Xuka
labels: <Location>
id: 1
type: entity
value: text: Mgwali
labels: <Location>
id: 2
type: entity
value: text: Dutywa 
labels: <Location>
id: 3
type: entity
value: text: Mnyolo rivers
labels: <Location>