Anchor: The ultimate goal of the data reliability assessment is to determine whether you can use the data for your intended purposes.
Entailed: There are a lot of goals when it comes to data reliability but the one is the ultimate. 
Contradiction: There is only one goal when it comes to assessing data reliability. 
Contradiction: Hersh wrote a book about Nixon.
Contradiction: A boy sits on a wall by the beach.
Contradiction: I've never bought tickets to any football games.
Contradiction: A group of men are in hockey uniforms.