Text: There were no pigs in pokes, no when pigs fly, no in a pig's ear, no Pigmeat Markham, no pork salad Annie, no Gadarene swine, no Piggly Wiggly, no E. B. White's Wilbur, no there in the wood the piggy-wig stood.
Entailment: No longer any pigs in pokes, not when in a pig's ear.
Contradiction: Look at all these pigs Jim, I cannot believe it.