Anchor: Large knobs protruded from under his skin along his collar bone and a small ridge lined his forehead.
Entailed: He had knobs along his collar bone and a ridge going across his forehead.
Contradiction: He had smooth skin all over without a blemish or a bump.
Contradiction: The photo is of a horse.
Contradiction: Old people are wearing clothes.
Contradiction: I do not care if you know what the differences there are.  
Contradiction: People are walking.