http://www.gribuser.ru/xml/fictionbook/2.0 FictionBook application/x-fictionbook+xml
http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul window application/vnd.mozilla.xul+xml
http://www.w3.org/1998/Math/MathML math application/mathml+xml
http://www.w3.org/1999/XSL/Transform stylesheet application/xslt+xml
http://www.w3.org/1999/xhtml html application/xhtml+xml
http://www.w3.org/2000/svg svg image/svg+xml
http://xspf.org/ns/0/ playlist application/xspf+xml
urn:oasis:names:tc:xliff:document:1.1 xliff application/x-xliff
