Anchor: a tennis player wearing a green shirt about to hit a ball with his racquet.
Entailed: A tennis player is wearing a green shirt.
Contradiction: The tennis player is a girl.
Contradiction: A man is asleep in a tree.
Contradiction: There was a letter written in March of last year.
Contradiction: A young girl is hiding under a desk in school.
Contradiction: He's now beyond my power to add or detract.