Anchor: an upside down man doing a flip on a waterski board
Entailed: A man involved in extreme watersports.
Contradiction: The man is bobbing hopelessly up and down in the water.
Contradiction: A woman in a restaurant, picking at her salad.
Contradiction: The man is riding a bike.
Contradiction: A man is sleeping.
Contradiction: An upside down man is not doing a flip.