Anchor: The heavy mass came straight for him, its treads churning like great teeth reaching for him.
Entailed: The huge mass barreled right at him, the treads appearing as massive teeth.
Contradiction: The monstrous mass turned away, passing onto another path on the road. 
Contradiction: A gorilla is standing by racers anticipating a handshake.
Contradiction: We've already done it thanks.
Contradiction: Two men in the living room
Contradiction: It doesn't contain anything in the middle.