Quad -- [Structural
term] -- For every dramatic unit, three others can be found that
possess a similar quality. A relationship exists in this group of four
units that allows them to act as potentiometer controlling dramatic direction
and flow. These groups can be represented as a square divided into four
quadrants -- hence the name QUAD. In each quad of four dramatic units,
special relationships and functions exist between diagonal, horizontal,
and vertical pairs.
