Anchor: Someone is surfing underneath a wave on a white surfboard.
Entailed: There is someone on a surfboard.
Contradiction: The person is on a boat.
Contradiction: Rysia was pleased with Miss Aldonka.
Contradiction: Some police officers are wearing vests.
Contradiction: It's untrue that Democrats cynically oversimplified Quayle's blunders.
Contradiction: A man on an empty street.