Anchor: Continue to give a 20-percent discount on hardback books to unborn children.
Entailed: Unborn children continue to receive a 20-percent discount on hardback books.
Contradiction: Unborn children will no longer receive a discount on hardback books.
Contradiction: The contractor has gone out of business and no longer works for the agency. 
Contradiction: A centralized system is used to arrange betting.
Contradiction: The doctor did not believe a single word he said.
Contradiction: A boy wearing a shirt.