Anchor: Two men playing guitars and singing on a stage with sound equipment.
Entailed: Two men are playing guitars
Contradiction: The men playing guitars are dressed as knights
Contradiction: A boy playing Chess with his father
Contradiction: A motocross race is about to begin.
Contradiction: Three Indians are sleeping.
Contradiction: It is possible that, if Greenspan did not respond soon enough, the economy would be negatively effected.