<mime-type type="application/simple-filter+xml"/>
  <mime-type type="application/simple-message-summary"/>
  <mime-type type="application/simplesymbolcontainer"/>
  <mime-type type="application/slate"/>

  <mime-type type="application/smil+xml">
    <alias type="application/smil"/>
    <_comment>SMIL Multimedia</_comment>
    <root-XML localName="smil"/>
    <sub-class-of type="application/xml"/>