Anchor: He concluded that a brief intervention might have a short-lived effect that degrades over time.
Entailed: Brief interventions may not have the greatest long term impact.
Contradiction: Brief interventions are known to have long lasting effects.
Contradiction: I was able to think of many retorts. 
Contradiction: They face charges.
Contradiction: A group of runners are eating in a restaurant
Contradiction: There is a pier.