Anchor: A surfer is on a wave.
Entailed: A person surfing.
Contradiction: A surfer relaxes on the beach.
Contradiction: Facing an amphitheater auditorium is a fixed decor of classical Greek statuary and columns.
Contradiction: There are people on a dock.
Contradiction: Almost no real power remained to the sultans, leaving them unhappy at their loss of stature.
Contradiction: I keep track in my book.