Anchor: Prior to the reorganization, a central security group of about four individuals concentrated on mainframe security administration and had little interaction with the rest of the company.
Entailed: There was a special mainframe security administration group that barely communicated with the rest of the company.
Contradiction: The central security group was made up of twenty individuals.
Contradiction: Joe died on the train.
Contradiction: Some people are about to ski.
Contradiction: A woman is shopping.
Contradiction: No, but in fact