Anchor: I've still never smoked a cigarette, although I'll enjoy a Cuban cigar if you're buying.
Entailed: I am not opposed to smoking Cuban cigars, but I have never tried a cigarette.
Contradiction: I've smoked cigarettes for the past ten years, but I like cigars better.
Contradiction: Such observation doesn't add anything to the richness, immediacy, and description involved in a case study.
Contradiction: The snowboarder is outdoors.
Contradiction: The women runs down the stairs.
Contradiction: I gave up that idea because it was incorrect.