Anchor: In this part of the boiler ductwork, there are no water wall tubes.
Entailed: Water wall tubes are absent in this part of the boiler ductwork.
Contradiction: There are water wall tubes in this part of the boiler ductwork.
Contradiction: Students oversleep in their dorms.
Contradiction: There was a pay cut so we're not saving anything at the moment.
Contradiction: A firefighter is looking up at an above-ground path.
Contradiction: Competitive environments affect the costs of service obligations.