Anchor: A half-century ago, a president could drive through city streets in a normal car with a few bodyguards, and anyone could stroll up to the front door of the White House.
Entailed: A president used to be able to move freely.
Contradiction: The president can currently drive with no bodyguards.
Contradiction: A single, solitary provider of services is what the government seeks to maintain. 
Contradiction: A canine runs.
Contradiction: A woman is sleeping at her desk.
Contradiction: Um sure