Anchor: The opponent laughed so hard that he couldn't get himself to brain him with his hammer.
Entailed: He wasn't able to brain him with his hammer because he was laughing so hard.
Contradiction: He wasn't able to brain him with his hammer because he was sinking into the ground.
Contradiction: The Brady bill said you could buy anything instantly.
Contradiction: A person is walking wearing a jacket.
Contradiction: Nobody is walking.
Contradiction: A man is holding a dead animal.