Anchor: This injection system is principally made from piping that may split off to manifolds for injecting in multiple locations.
Entailed: The injection system is made of piping.
Contradiction: The injection system is made of aluminum. 
Contradiction: Two men are sleeping in a bed.
Contradiction: I'm proud that he is a good person and actor.
Contradiction: Temple priests refuse to light cedar wood on fire.
Contradiction: The cello player wears a gold skirt and the tuba player in front of her wears a green skirt.