Anchor: On ranches, border collie puppies are taken from the litter and tested for their instinctual desire to herd sheep.
Entailed: Border collies are taken from their litters as puppies on ranches.
Contradiction: Border collies don't have their sheep-herding instincts tested until they're fully grown.
Contradiction: It's just like you said, leaders should be selfish.
Contradiction: This small collection contains 16 El Grecos.
Contradiction: The Christ Church was built by the Dutch in 1700.
Contradiction: Volleyball competition