The Pinacate National Park includes the only active Erg dune region in North America.

Entity and relation annotations:
id: 0
type: entity
value: text: The Pinacate National Park
labels: <Location>
id: 1
type: entity
value: text: Erg dune region
labels: <Location>
id: 2
type: entity
value: text: North America
labels: <Location>
type: relation
to_id: 2
labels: Location:located_in:Location
from_id: 1