Anchor: Our advertising does not--and never has--treated all drugs equally.
Entailed: We advertise about different drugs.
Contradiction: We have, in the past, treated and advertised all drugs equally.
Contradiction: The boy is standing near the sofa.
Contradiction: a bird was on rocks
Contradiction: There are absolutely no sedan chairs to be found at the temple.  
Contradiction: Isn't that the Italian heritage?