Anchor: Rollers underneath them and slaves tugging and pushing at them were the only means of moving them.
Entailed: It was useless to simply pull, the only means of moving them were with rollers underneath and slaves tugging and pushing them.
Contradiction: Rollers were a hindrance in moving them.
Contradiction: He turned into a newt.
Contradiction: Prices have gone up by as much as 50%.
Contradiction: she stood by a tree and watched bicyclists
Contradiction: A wrestler spins.