Content Model

<!ENTITY % all-phrase   "%address-link.class; | %article-link.class; |
                         %appearance.class; | %emphasis.class;  |
                         %inline-display.class; |
                         %inline-math.class; | %math.class; |
                         %phrase.class; | %simple-link.class; |
                         %subsup.class; | %x.class;"                 >

Expanded Content Model

email | ext-link | uri | inline-supplementary-material | related-article | related-object | hr | bold | italic | monospace | overline | overline-start | overline-end | roman | sans-serif | sc | strike | underline | underline-start | underline-end | alternatives | inline-graphic | private-char | chem-struct | inline-formula | tex-math | mml:math | abbrev | milestone-end | milestone-start | named-content | styled-content | fn | target | xref | sub | sup | x