Anchor: He goes boldly to the village chemist's and purchases strychnine under his own name, with a trumped up story about a dog which is bound to be proved absurd. 
Entailed: He bought strychnine under his own name, claiming it was for a dog. 
Contradiction: There is no record of him purchasing strychnine.
Contradiction: You'll never make a mistake.
Contradiction: Three people are at the train station.
Contradiction: I already found day care for both of them.
Contradiction: There is water around the dog.