Text: In a month from now sooner or later as you wish I will guarantee you such a reign of terror in Ireland as shall shake the British Empire to its foundations. There was a pause, and then came the soft, sibilant accents of Number One: "Good!
Entailment: A reign of terror will grasp Ireland in just a month's time.
Contradiction: Ireland will enter a golden age of peace and tranquility in a month's time.