he same <a href="#namespace()"><code>namespace()</code></a>. In such case, all of them
 must have the same <a href="#location()"><code>location()</code></a> values.


 <h3>Note to implementor</h3>
 <p>
 More precisely, the value must be either <code>""</code>, <code>"##generate"</code>, or
 <a href="http://www.w3.org/TR/xmlschema-2/#anyURI">
 a valid lexical representation of <code>xs:anyURI</code></a> that begins
 with <code>&lt;scheme&gt;:</code>.

 <p>
 A schema generator is expected to generate a corres