Between Springfield and Lake Maurepas, Ponchatoula Creek joins the Natalbany and increases its flow.

Entity and relation annotations:
id: 0
type: entity
value: text: Springfield
labels: <Location>
id: 1
type: entity
value: text: Lake Maurepas
labels: <Location>
id: 2
type: entity
value: text: Ponchatoula Creek
labels: <Location>
id: 3
type: entity
value: text: the Natalbany
labels: <Location>
type: relation
to_id: 3
labels: Location:Adjacent:Location
from_id: 2