Anchor: Yellow corn being boiled (barbecued) on a small aluminum canister, two pigeons standing nearby.
Entailed: Food is being cooked while some animals look on.
Contradiction: Two birds are eating some yellow corn.
Contradiction: There are just two paintings on display.
Contradiction: More than thirty percent of farm workers leave the country every year.
Contradiction: The doctor was completely satisfied. 
Contradiction: There were homes on the market for a decade.