1<?xml version="1.0"?>
2<Foo
3	xmlns="urn:test:foo"
4	xmlns:foo="urn:test:foo"
5	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
6	xsi:schemaLocation="urn:test:foo idc-keyref_1.xsd">
7
8    <Def>
9        <Link foo:linkKey="L4"/>
10    </Def>
11
12    <Ref foo:linkRef="L4"/>
13
14</Foo>