Sweden forced Denmark to hand over Norway by the Treaty of Kiel.

Entity and relation annotations:
id: 0
type: entity
value: text: Sweden
labels: <Location>
id: 1
type: entity
value: text: Denmark
labels: <Location>
id: 2
type: entity
value: text: the Treaty of Kiel
labels: <Regulation>
id: 3
type: entity
value: text: Norway
labels: <Location>