Anchor: The volume variables are the number of pieces in the category and the price variables are fixed-weight indexes of the range of prices paid by the mailpieces making up the category.
Entailed: volume variables are the number of pieces that can be placed in a category.
Contradiction: volume variables and price variables are the same thing.
Contradiction: Four men are fighting.
Contradiction: People are standing together.
Contradiction: People eating in restaurant.
Contradiction: The CIO will soon be utilized in improving productivity and efficiency.