 characters for which it cannot 
 determine the normalization properties, then the processor will 
 ignore any possible denormalizations caused by these characters.  
 This parameter is ignored for [<a href='http://www.w3.org/TR/2004/REC-xml-20040204'>XML 1.0</a>]. </dd>
 <dt>
 <code>false</code></dt>
 <dd>[<em>optional</em>] Report an fatal <b>"unknown-character-denormalization"</b> error if a character is encountered for which the processor cannot 
 determine the normalization properties. </dd>
 </dl></dd