Anchor: studies in American emergency settings have provided inconclusive evidence that brief intervention works.
Entailed: It has been proved through studies that brief intervention does not work.
Contradiction: Brief intervention works quite effectively according to studies.
Contradiction: Fell running requires no courage.
Contradiction: He said, "Let's go."
Contradiction: The result of watching TV is always predictable. 
Contradiction: After the us spent milions of dollars investigating Microsoft the didn't find any fault in their success and company