The lake is on the Nelson River north of Lake Winnipeg.

Entity and relation annotations:
id: 0
type: entity
value: text: the Nelson River
labels: <Location>
id: 1
type: entity
value: text: Lake Winnipeg
labels: <Location>
id: 2
type: entity
value: text: Nelson
labels: <Location>
type: relation
to_id: 2
labels: Location:located_in:Location
from_id: 0