Anchor: A man in a pink shirt is showing a magic trick to a boy in a blue shirt.
Entailed: There is a boy watching a man.
Contradiction: A boy is wearing a pink shirt and a man is wearing a blue shirt.
Contradiction: An edler man plays guitar
Contradiction: Two men playing checkers.
Contradiction: a dog is chasing his tail
Contradiction: He is very skilled at what he does.