Anchor: I didn't know anyone with a DOS system in the early '80s, but I knew plenty of people with Commodore 64s, TI 99-4As, Apple IIs, computers by Tandy, and even Timex--all with distinct and incompatible operating systems.
Entailed: He knew plenty of people that had a Commodore 64 in the '80s.
Contradiction: He knew many people with DOS.
Contradiction: You would never call your friends with the telephone.
Contradiction: Art would be a counter-reformation tool if it was revised a bit.
Contradiction: No goals are set for executives.
Contradiction: The woman said hi to the boy.