Anchor: Upon completion of training, the employee enters a performance evaluation period during which the employee earns 75 percent of his or her salary.
Entailed: The employee enters a performance evaluation period where they get paid less.
Contradiction: The employee enters a performance evaluation period where they are not paid at all.
Contradiction: If you are bad at memorizing things it doesn't matter your grades will be fine. 
Contradiction: Three vehicles are on a road.
Contradiction: Do not hesitate or wait.
Contradiction: Every now and then my husband receives a call while he is at work.