Anchor: Unless Wanamaker was willing to pay double for reaching the right half of the people, his total ad spending would go down and not up.
Entailed: If Wanamaker paid double for his ads, his ad spending would go up.
Contradiction: Wana maker would see higher total ad spending if he paid less to reach more of the wrong people. 
Contradiction: Very few serve as deputy or higher in their countries.
Contradiction: Two police officers stand and talk to each other.
Contradiction: The water park Kolymithres on Paroseours is only fun for children.
Contradiction: My family lives in Houston.