The book's title refers to the ship Shackleton used for the expedition, the "Endurance".

Entity and relation annotations:
id: 0
type: entity
value: text: "Endurance"
labels: <Production>
id: 1
type: entity
value: text: Shackleton
labels: <Person>
type: relation
to_id: 0
labels: Person:owns/uses:Production
from_id: 1