Anchor: Saw blade being sharpened on revolving sharpening wheel by a dark-skinned man.
Entailed: A man works with tools.
Contradiction: A man is not working with tools.
Contradiction: Guy using a blade for work
Contradiction: The man is diving under water.
Contradiction: the man is eating shrimp at home
Contradiction: A man is squinting as he paints his fingernails.