<?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">
    <b>this is b</b>
</a>
