Anchor: A construction worker is laboring.
Entailed: The worker is doing his job.
Contradiction: The worker is on break.
Contradiction: two rugby players are dog piled
Contradiction: The distribution of outbound mail can be ordered by weight. 
Contradiction: Anse sat on a stool while Drew was in the tub. 
Contradiction: I am sponsoring a literary magazine and doing the entire layout on the computer.