<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" targetNamespace="http://www.w3.org/XML/1998/namespace" xmlns:atom="http://purl.org/atom/ns#">
  <xs:import namespace="http://purl.org/atom/ns#" schemaLocation="pie02.xsd"/>
  <xs:attribute name="base" type="xs:anyURI"/>
  <xs:attribute name="lang" type="xs:language"/>
</xs:schema>