(title?, ((calloutlist|glosslist|itemizedlist|orderedlist|segmentedlist|simplelist| variablelist)| (caution|important|note|tip|warning)| (literallayout|programlisting|programlistingco|screen|screenco|screenshot)| (synopsis|cmdsynopsis|funcsynopsis|classsynopsis|fieldsynopsis| constructorsynopsis|destructorsynopsis|methodsynopsis)| (formalpara|para|simpara)| ((address|blockquote|mediaobject|mediaobjectco|informalequation| informalexample|informalfigure|informaltable))| (equation|example|figure|table)| (msgset|procedure|sidebar)| (anchor|remark|highlights)| ((abstract|authorblurb))| (indexterm))+)