Anchor: Jon knelt and whispered to Susan.
Entailed: Jon was on his knees saying something to Susan.
Contradiction: Jon stood up and screamed Susan's name. 
Contradiction: The city of Alexandria has the best beaches.
Contradiction: A baseball writer has a theory that all managers perform their best in their first few years on a team. 
Contradiction: The supposition wasn't very intelligent.
Contradiction: Arab keffiyeh head-dress is good for warding off dessert dust and sun.