Anchor: At the top of the tower is a white ball on a metal stake.
Entailed: A spherical object rests on a metal rod at the tower's uppermost level.
Contradiction: There is nothing inside the tower.
Contradiction: A dog is sitting on a blue rug.
Contradiction: Communist rule in Poland was opposed.
Contradiction: I think we could learn some things from the phone system
Contradiction: Someone is out in nature.