Anchor: Conditions of water pollution vary from year to year, but observe the general rule of thumb of avoiding a dip in the immediate vicinity of major industrialized port  Genoa, Naples, and Palermo.
Entailed: You should avoid swimming near big industrial ports.
Contradiction: Water pollution conditions are the same every year.
Contradiction: The courageous actions of the Canadians in Dieppe were forgotten.
Contradiction: Road crew standing near a truck outside.
Contradiction: Two men drag racing.
Contradiction: Two people in front of a lake before dark.