Anchor: The F-22 program is structured to provide the product's full capability with the first product off the production line-an extreme design challenge.
Entailed: The F-22 program was an extreme design challenge.
Contradiction: The F-22 was not particularly challenging.
Contradiction: pieces without Zip Codes are accepted, but with a surcharge.
Contradiction: A man and a woman are laughing.
Contradiction: A boy is bouncing on a blue ball.
Contradiction: The boy is wearing a striped shirt.