<?xml version="1.0"?>
<doc>
<parent>
<discarded>discarded</discarded>
<preserved/>
This text node must be discarded
<discarded>discarded</discarded>
<preserved>
content1
<child1/>
<child2>content2</child2>
<preserved>too</preserved>
<child2>content3</child2>
<preserved/>
<child2>content4</child2>
<preserved/>
<child2>content5</child2>
content6
</preserved>
This text node must be discarded
<discarded>discarded</discarded>
This text node must be discarded
<preserved/>
This text node must be discarded
<preserved/>
This text node must be discarded
<discarded>discarded</discarded>
This text node must be discarded
</parent>
</doc>