Anchor: On The Simpsons , for example, Nixon has appeared in caricature at least 20 times (according to the Simpsons Archive Web site).
Entailed: Nixon has made multiple appearances on The Simpsons.
Contradiction: Nixon has made 10 appearances on The Simpsons.
Contradiction: Equipment should stay in place, even if it wears out.
Contradiction: Dave saw petulance in place of the stoicism he expected. 
Contradiction: This position was one of the saddest jobs somebody could have.
Contradiction: I don't think we should give them a lifetime income.