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