Other notable examples are the Ottawa Greenbelt and Golden Horseshoe Greenbelt in Ontario, Canada.

Entity and relation annotations:
id: 0
type: entity
value: text: the Ottawa Greenbelt
labels: <Location>
id: 1
type: entity
value: text: Golden Horseshoe Greenbelt
labels: <Location>
id: 2
type: entity
value: text: Ontario
labels: <Location>
id: 3
type: entity
value: text: Canada
labels: <Location>
type: relation
to_id: 3
labels: Location:located_in:Location
from_id: 2
type: relation
to_id: 2
labels: Location:located_in:Location
from_id: 1
type: relation
to_id: 2
labels: Location:located_in:Location
from_id: 0