Anchor: This is a pity, for his caustic tone and shallow glosses undermine what is a bold and worthy  to write a readable one-volume history of the American people.
Entailed: His tone undermines an otherwise great book. 
Contradiction: The book was phenomenal with no faults. 
Contradiction: A dog is playing with a cat.
Contradiction: Niihau does not have any hotels, electricity or running water.
Contradiction: The boy is swimming.
Contradiction: it is raining