<!--
http://www.w3.org/TR/xmldsig2ed-tests/#c14n11xmlbase-prop-4

Check that implementations of [XML-C14N1.1] properly build the xml:base 
if several intermediate levels (ietf:e1 and ietf:e11) are absent from 
the document subset.
-->
<XPath xmlns:ietf="http://www.ietf.org" >
(//. | //@* | //namespace::*)
[ancestor-or-self::ietf:e111]
</XPath>