Anchor: In particular, no two groups were alike regarding the extent of support they received from other organizational units.
Entailed: All groups had differing amounts of support received from other organizational units.
Contradiction: Every group was remarkably similar in terms of the extent of support received from other organizational units.
Contradiction: Four people are driving down the road in a car.
Contradiction: I have a friend whose son participates in the Peace Corps.
Contradiction: Newspapers are now expensive, they have always been cheap previously.
Contradiction: He found the best four warriors he had ever known.