Anchor: A boy with a zip-up sweater is playing the french horn.
Entailed: A boy with a sweater is playing the french horn.
Contradiction: A girl with a zip-up sweater is playing the french horn.
Contradiction: My father gave me this dog three years ago before he passed away.
Contradiction: There is extensive fencing that surrounds the entirety of the pond. 
Contradiction: Two women are window shopping.
Contradiction: A man shoots an arrow at a target