Anchor: A man wearing black is playing an electric guitar.
Entailed: The man in black is playing guitar.
Contradiction: The man in black is a professional lemon wrestler.
Contradiction: The item is not a rapier. 
Contradiction: The preamble contains an analysis of the benefits of the rule and its effect on the economy. 
Contradiction: The group of people are happy.
Contradiction: Herein is contained a brief explanation of the Ceramic Materials Research Programs for a period of 5 years.