Anchor: A boy with black hair holds a skateboard while sitting down.
Entailed: The boy has something in his hands.
Contradiction: The boy is holding an apple pie.
Contradiction: Las vegas did not seem like a good place to put a way station. 
Contradiction: The ships were dragged overland at night to get past the defensive chain.
Contradiction: The Commission does not satisfy the given requirements of section 604(a).
Contradiction: All data assessment work should be documented