<?xml version="1.0" encoding="utf-8"?>
<a xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
  xmlns="http://www.example.com/a"
  xsi:schemaLocation="http://www.example.com/a ../data/xsd/nonamespace.xsd">
  <c>this is b</c>
</a>

