<xlink:extended
  role="price list"
  title="Price List"
  showdefault="replace"
  actuatedefault="user">
  <xlink:locator href="URL#lpl142" id="lci9872" />
  <xlink:locator href="URL#lci9872" id="lpl142" />
  <xlink:arc from="lci9872" to="lpl142" show="new"/>
  <xlink:arc from="lpl142" to="lci9872" show="new"/>
</xlink:extended>

Note: Fragment for illustration purposes only