Anchor: A man wears a black helmet and is on a black skateboard.
Entailed: Tom likes to ride his black skateboard.
Contradiction: His sister prefers riding a scooter.
Contradiction: No, you're wrong.
Contradiction: Fishermen are taking to the sea.
Contradiction: A man eats his lunch while his daughter plays on the floor.
Contradiction: This is how things have always been.