Anchor: A dog goes headfirst into the long grass from the sand.
Entailed: There is a dog outdoors
Contradiction: There is a dog indoors
Contradiction: Statisticians have never given their opinion on whether or not any selection took place. 
Contradiction: The sun's raying bursting over a quiet earth can be a breathtaking experience.
Contradiction: National government has always been regarded as an obvious solution.
Contradiction: This person is stacking things