Anchor: A man plays guitar in the dark.
Entailed: A man strums his guitar.
Contradiction: A man jams out on his bass guitar in a sunny yard.
Contradiction: Early in the construction phase a formal construction management plan has not been developed.
Contradiction: You can use GemDraw to create lines. 
Contradiction: The activities are used to identify rewards for fraud. 
Contradiction: Is there a reason to apologize?