Anchor: Prehistoric man dotted the island with his mysterious cone-shaped nuraghi houses and watchtowers before it was colonized by Cretans, Phoenicians, Carthaginians, and Romans.
Entailed: Prehistoric men built houses on the islands.
Contradiction: Prehistoric men were nomads that had no homes.
Contradiction: The boy is napping in front of the television.
Contradiction: We can't all move forward. 
Contradiction: Two men playing piano.
Contradiction: A girl is measuring a liquid in her kitchen.