Anchor: Education  Lessons from Three Case Studies,
Entailed: There were three case studies about education.
Contradiction: THere were twenty case studies.
Contradiction: People are watching the opera.
Contradiction: The changes are needed to make weapon systems predictable.
Contradiction: Why are they still holding us captive? asked Tuppence.
Contradiction: Sir Rowland Evans crafted the first version, he works for CNN.