Anchor: This puts it at a disadvantage vis a vis the Postal Service, which delivers to all households.
Entailed: The Postal Service delivers to all households.
Contradiction: The Postal Service delivers to most households.
Contradiction: The father is dead.
Contradiction: The dog has legs.
Contradiction: They did it without the support of John McKay and John Erienborn.
Contradiction: Viejo Madrid represents physical center of the city.