Anchor: Web advertising is smart, in the sense that it can be far more detailed and specific and because it can reach a target with surgical precision.
Entailed: Web advertising is a good idea because it can pinpoint a target with immense precision.
Contradiction: Web advertising is a bad idea.
Contradiction: An overview of the causes of epilepsy and consequences of smoking. 
Contradiction: Today's Papers completely agrees with this. 
Contradiction: To repair a foal!
Contradiction: A man is drinking a cup of tea.