Anchor: In the center of his chest was a grizzly scar, wide and star-shaped.
Entailed: He has a wide, star-shaped scar. 
Contradiction: His scar is shaped like a triangle.
Contradiction: The kid is sitting at her desk.
Contradiction: The man has his hand above his waist.
Contradiction: A man is flying kites at the beach
Contradiction: the young boys are performing