Anchor: A man in a black shirt playing guitar in a band.
Entailed: A man is playing guitar.
Contradiction: A man plays the keyboard in a pink shirt.
Contradiction: A woman with dreadlocks plays a green electric guitar on stage with his band mates.
Contradiction: Make sense? 
Contradiction: People are sitting on the round having a picnic in the rain.
Contradiction: The EPA has issued guidelines for the preparation of economic analyses.