========================
Expression: /doc/elem/namespace::node()/..
Object is a Node Set :
Set contains 1 nodes:
1  ELEMENT elem
    namespace ns2 href=nsuri2

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Expression: /doc/elem/namespace::*/self::node()[true()]
Object is a Node Set :
Set contains 3 nodes:
1  namespace xml href=http://www.w3.org/XML/1998/namespace
2  namespace ns1 href=nsuri1
3  namespace ns2 href=nsuri2

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Expression: //*[namespace::ns1]
Object is a Node Set :
Set contains 4 nodes:
1  ELEMENT doc
    namespace ns1 href=nsuri1
2  ELEMENT preceding
3  ELEMENT elem
    namespace ns2 href=nsuri2
4  ELEMENT following

========================
Expression: /doc/elem/namespace::ns2/following::*
Object is a Node Set :
Set contains 1 nodes:
1  ELEMENT following

========================
Expression: /doc/elem/namespace::ns2/preceding::*
Object is a Node Set :
Set contains 1 nodes:
1  ELEMENT preceding