Document fragment initial text: 12, child nodes: 3
Element initial text: 34, child nodes: 2
Element text after document.normalize(): 34, child nodes: 2
Document fragment text after documentFragment.normalize(): 1234, child nodes: 2
Text node 1 data: 12
Text node 2 data: 2
Text node 3 data: 34
Text node 4 data: 4
