This has been dubbed the Hawarden Kite after Hawarden Castle, the Gladstone family home.

Entity and relation annotations:
id: 0
type: entity
value: text: the Hawarden Kite
labels: <Production>
id: 1
type: entity
value: text: Hawarden Castle
labels: <Location>
id: 2
type: entity
value: text: the Gladstone family home
labels: <Location>
type: relation
to_id: 2
labels: Location:located_in:Location
from_id: 1