Anchor: Each group represented a time in the history of legal services -- The Past (20 years ago), The Present and The Future (10 years from now).
Entailed:  Each group represented a time in the history of legal services.
Contradiction: None of the groups represent time in the history of legal services.
Contradiction: In the cornerstone of cookbooks
Contradiction: Saran Wrap can be used to cover the film that some people don't like. 
Contradiction: A woman is afraid of the chainsaw.
Contradiction: I'm guessing I disagree with you too Fred.