The Panam river merges with the Mahi river downstream of the Panam Dam.

Entity and relation annotations:
id: 0
type: entity
value: text: The Panam river
labels: <Location>
id: 1
type: entity
value: text: the Mahi river
labels: <Location>
id: 2
type: entity
value: text: the Panam Dam
labels: <Location>