Anchor: A boy playes with a stringless racket in his backyard.
Entailed: In the backyard, a boy plays with a stringless racket.
Contradiction: A boy swims in his pool at the local YMCA.
Contradiction: Cats are napping.
Contradiction: Cheap labor is used to farm.
Contradiction: A person is parachuting off of a building.
Contradiction: They looked around for an experienced engineer, builder or construction genius.