"Whale" launched three torpedoes and sank the larger of the freighters, "Denmark Maru".

Entity and relation annotations:
id: 0
type: entity
value: text: "Denmark Maru"
labels: <Production>
id: 1
type: entity
value: text: "Whale"
labels: <Production>
id: 2
type: entity
value: text: torpedoes
labels: <Production>
id: 3
type: entity
value: text: Denmark
labels: <Location>