Anchor: On the other hand, if the employee chooses to request annual or sick leave rather than to work for the time absent, then a material deviation for recording purposes has occurred.
Entailed: If an employee chooses to request annual or sick leave rather than to work for the time absent, a material deviation for recording purposes has occurred.
Contradiction: If an employee chooses to request annual or sick leave rather than to work for the time absent, a material deviation for recording purposes hasn't occurred.
Contradiction: The door remained open.
Contradiction: A man and a woman are walking three dogs.
Contradiction: Everyone that buys a gun has a background check. 
Contradiction: in some families, the father brings up the sons and the mother brings up the daughters