Anchor: The natural snowfall is often augmented by snow-making equipment to ensure adequate powder.
Entailed: Snow is artificially made to supplement the natural snowfall.
Contradiction: Only natural snow is used there.
Contradiction: The dogs are swimming in the small pond.
Contradiction: Removing the limit will take away the advantages of legislative compromise.
Contradiction: So you agree that you bought the poison then?
Contradiction: A man intently looks at a sculpture.