question: Which Dark Tower books are not part of the original series?
answerText: The Wind Through the Keyhole and The Little Sisters of Eluria
questionEntity.name: Q280898
questionEntity.entityType: entity
questionEntity.label: The Dark Tower
questionEntity.mention: Dark Tower
answerEntity.name: Q923111
answerEntity.label: The Dark Tower: The Wind Through the Keyhole
answerEntity.name: Q7729012
answerEntity.label: The Dark Tower: The Little Sisters of Eluria