You probably have not looked too closely at real-world XML. • Many XHTML and SVG elements can occur without dedicated wrapper elements. • In Atom feeds, <auth

You probably have not looked too closely at real-world XML. • Many XHTML and SVG elements can occur without dedicated wrapper elements. • In Atom feeds, <author>, <category>, <contributor>, <link> elements can occur multiple times without a dedicated wrapper element. • In XSPF playlists, <link>, <meta>, <extension>, <location>, <identifier> elements can occur multiple times without a dedicated wrapper element.