Anchor: Chapter 5 focuses on synergistic combinations of control retrofits on a single unit.
Entailed: Chapter 5 focuses on synergy combinations of control retrofits on one unit 
Contradiction: Chapter 5 focuse solely on synergy 
Contradiction: A guy is skiing over a bridge covered in snow.
Contradiction: Many of these items contain several individual advertisements.
Contradiction: The butler did not open the door.
Contradiction: Another indicator of potential problems, is tracking the total number of people assigned to a system development effort.