Anchor:  It drifted gently, while Bork pulled a few sticks with runes written on them toward him and made a hasty assembly of them.
Entailed: Bork pulled sticks with runes for the construction. 
Contradiction: It did not shift even slightly.
Contradiction: Three blue telephone booths stand at the edge of a rice field.
Contradiction: Two people look at a picture.
Contradiction: We will be back tomorrow night, said Jon.
Contradiction: Credit is to be given then.