Anchor: It would be unnecessary to have two cars waiting about.
Entailed: I don't need two cars to wait for me. 
Contradiction: It is imperative that I have two cars waiting for me. 
Contradiction: The baby plays in the park.
Contradiction: They are going to the ocean
Contradiction: Dog sleeping under a tree
Contradiction: Private pensions, accumulated assets, or other resources should supplement Social Security benefits.