1<?xml version="1.0"?>
2<XPath xmlns:bar="http://example.org/bar" xmlns:baz="http://example.org/baz" xmlns:foo="http://example.org/foo" xml:lang="en-ie">
3    (//. | //@* | //namespace::*)
4    [
5              <!-- only namespace nodes -->
6              ancestor-or-self::bar:Something  and
7              (count(parent::node()/namespace::*)  =
8               count(parent::node()/namespace::* | self::node()))
9    ]
10</XPath>
11