Because the four labels are hierarchical, the four labels are encoded as hierarchical classifications.
With the legal department's approval, the security administrator shortened the labels by omitting SecCompany Confidential: from the label names. Long classifications make labels hard to read in window frames. The name of a label is truncated from right to left in the window frames. Because the truncated names of all the label names above PUBLIC would begin with the words SECCOMPANY, the truncated names would be indistinguishable without manually extending the frame for each window.
The security administrator defined the following labels: