Anchor: For example, web hits were counted in the 2001 version of the system, but this proved to be a vague concept that produced huge numbers but little useable information.
Entailed: Web hits were included in the 2001 version.
Contradiction: Web hits were not included in the 2001 version.
Contradiction: Four old men are at home eating.
Contradiction: She got a KitchenAid and she makes pizza dough then freezes it.
Contradiction: He thought encoiraging this linkage would decrease the proportion. 
Contradiction: I knew Jane would be hurt by what I said.