Anchor: This seemed a far cheaper--indeed probably costless--alternative to a front-end bonus.
Entailed: This appeared to be a less expensive substitution for a front-end bonus.
Contradiction: This choice is much more expensive than a front-end bonus would be.
Contradiction: The system is down, permanently. 
Contradiction: A man is standing by a doorway.
Contradiction: Two boys in black swim trunks are splashing in a fountain.
Contradiction: A man prepares food.