Anchor: the skateboard racers are coming around a curve in the road.
Entailed: Skateboarders taking a curve in the road.
Contradiction: Two bicyclists are taking a curve on the road.
Contradiction: It was dark outside.
Contradiction: INS calculated that detaining criminal aliens will cost at least $205 million.
Contradiction: The woman is old
Contradiction: He was overwhelmed by feelings of dread.