Anchor: Clinton doesn't allow alcohol in the Oval Office because it might interfere with his potency.
Entailed: Clinton has a no alcohol policy in the Oval Office.
Contradiction: Clinton loves to drink in the Oval Office.
Contradiction: A guitar player has no tattoos
Contradiction: I hope they get them serviced at a Honda dealership. 
Contradiction: Steel requirements for ductwork don't get any better even with the use of more efficient designs.
Contradiction: A woman has a camera.