7.1.7 Literal Described Character
The literal-described-char element type form specifies that bit combinations in an SGML document whose meaning was declared in the SGML declaration using a minimum literal equal to the value of the desc attribute are to be converted to the character whose name is specified in the content of the element.
<literal-described-char desc="SGML User's Group logo">
logoSGML
</literal-described-char>