Anchor: Natalia didn't comment, though her expression was even more dour than usual.
Entailed: Natalia was quiet and sad.
Contradiction: Natalia was happy and excited.
Contradiction: There men were playing Soccer in the basketball court
Contradiction: The race will be won by a cyclist.
Contradiction: Most fields require people to learn just a bit of background material for them to become experts.
Contradiction: California Institute of Technology's three-to-one student-faculty ratio is much praised.