Object is a Node Set :
Set contains 1 nodes:
1    ELEMENT head
Object is a Node Set :
Set contains 2 nodes:
1    ELEMENT head
2    ELEMENT chapter
Object is a Node Set :
Set contains 1 nodes:
1    ELEMENT title
Object is a Node Set :
Set contains 1 nodes:
1    TEXT
    content=Welcome to Gnome
Object is a Node Set :
Set contains 1 nodes:
1    ELEMENT title
Object is a Node Set :
Set contains 2 nodes:
1    ELEMENT title
2    ELEMENT title
Object is a Node Set :
Set contains 1 nodes:
1    ELEMENT chapter
