Anchor: A bicyclist does tricks on a lime green bike.
Entailed: A person does tricks.
Contradiction: A person doing tricks crashing and failing.
Contradiction: Marble from Greek and Roman temples were never used outside of their own buildings.
Contradiction: I had a sigh.
Contradiction: The southern coastline of Jamaica has a lot of main roads. 
Contradiction: When I need a percontativus, where is it?