((title,subtitle?,titleabbrev?)?, ((itemizedlist|orderedlist|variablelist|simplelist|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)|anchor|remark| (link|ulink))*, (indexentry+|segmentedlist)))