<!DOCTYPE doc [<!ATTLIST normId attr NMTOKENS #IMPLIED>]> <doc>
<!-- no normalization --> <norm attr=' '/> <norm attr=' foo bar '/> <norm attr='
foobar'/>
<norm attr=' foo bar
'/>
<norm attr='foobar
'/>
<norm attr=' & '/> <norm attr=' foo&bar '/> <norm attr='
foobar&'/>
<norm attr='&foo bar
'/>
<norm attr='foobar
&'/>
<norm attr=' < '/> <norm attr=' foo<bar '/> <norm attr='
foobar<'/>
<norm attr='<foo bar
'/>
<norm attr='foobar
<'/>
<norm attr='   
	 '/> <!-- normalization --> <normId attr=' '/> <normId attr=' foo bar '/> <normId attr='
foobar'/>
<normId attr=' foo bar
'/>
<normId attr='foobar
'/>
<normId attr=' & '/> <normId attr=' foo&bar '/> <normId attr='
foobar&'/>
<normId attr='&foo bar
'/>
<normId attr='foobar
&'/>
<normId attr=' < '/> <normId attr=' foo<bar '/> <normId attr='
foobar<'/>
<normId attr='<foo bar
'/>
<normId attr='foobar
<'/>
<normId attr=' 
	 '/> <!-- PBM serializing back -->
</doc>