========================
Expression: s
Object is a Node Set :
Set contains 1 nodes:
1  ELEMENT s
    ATTRIBUTE p
      TEXT
        content=root

========================
Expression: s|p1/s
Object is a Node Set :
Set contains 2 nodes:
1  ELEMENT s
    ATTRIBUTE p
      TEXT
        content=root
2  ELEMENT s
    ATTRIBUTE p
      TEXT
        content=p1

========================
Expression: s|/root/p1/s
Object is a Node Set :
Set contains 2 nodes:
1  ELEMENT s
    ATTRIBUTE p
      TEXT
        content=root
2  ELEMENT s
    ATTRIBUTE p
      TEXT
        content=p1

========================
Expression: /root/p1/s|s
Object is a Node Set :
Set contains 2 nodes:
1  ELEMENT s
    ATTRIBUTE p
      TEXT
        content=root
2  ELEMENT s
    ATTRIBUTE p
      TEXT
        content=p1

========================
Expression: //s
Object is a Node Set :
Set contains 3 nodes:
1  ELEMENT s
    ATTRIBUTE p
      TEXT
        content=root
2  ELEMENT s
    ATTRIBUTE p
      TEXT
        content=p1
3  ELEMENT s
    ATTRIBUTE p
      TEXT
        content=p2

========================
Expression: //s|p1
Object is a Node Set :
Set contains 4 nodes:
1  ELEMENT s
    ATTRIBUTE p
      TEXT
        content=root
2  ELEMENT p1
3  ELEMENT s
    ATTRIBUTE p
      TEXT
        content=p1
4  ELEMENT s
    ATTRIBUTE p
      TEXT
        content=p2

========================
Expression: p1|//s
Object is a Node Set :
Set contains 4 nodes:
1  ELEMENT s
    ATTRIBUTE p
      TEXT
        content=root
2  ELEMENT p1
3  ELEMENT s
    ATTRIBUTE p
      TEXT
        content=p1
4  ELEMENT s
    ATTRIBUTE p
      TEXT
        content=p2