Anchor: There are examples of productivity improvements of 9 to 19 percent during the project due to additional efficiencies gained from learning curves.
Entailed: Learning curves provided additional productivity improvements in some cases.
Contradiction: Learning curves can only provide a two or three percent productivity improvement.
Contradiction: Football players are playing videogames
Contradiction: People are consuming food.
Contradiction: I wear a fleece sweater to class because I don't own a leather jacket.
Contradiction: Despite the town being overrun by Moors, the fortress did not fall.