<xmi:XMI version="2.0" xmlns:UML=" http://schema.omg.org/spec/UML/1.4" 
xmlns:xmi=" http://schema.omg.org/spec/XMI/2.0">
<xmi:Metamodel name="UML" version="1.4" href="UML.xml"/>
<xmi:Model name="example" version="1" href="example.xml"/>
<UML:Class name="C1">
<feature xmi:type="UML:Attribute" name="a1" visibility="private"/>
</UML:Class>
</xmi:XMI>
