%subject-elements;
Subject Grouping Name Elements
Elements that may be used along with data characters inside the content model of the <subject> element.
Model
<!ENTITY % subject-elements
"| %emphasis.class; | %inline-display.class; |
%inline-math.class; |
%phrase-content.class; | %subsup.class;" >Expanded Model
| bold | fixed-case | italic | monospace | overline | roman | sans-serif | sc | strike | underline | ruby | alternatives | inline-graphic | private-char | chem-struct | inline-formula | named-content | styled-content | sub | sup