Anchor: A man without a shirt plays drums.
Entailed: There is a man playing a musical instrument.
Contradiction: The mans shirt keeps getting caught in his drum set.
Contradiction: Limos and native Americans cause the worst of the traffic. 
Contradiction: A man who wants to attack sees a target everywhere he looks.
Contradiction: The attempts to drain the wetlands helped the coral reef offshore.
Contradiction: I think the difference between drug use and drug abuse is how dominant a force the drug becomes in their everyday life.