<?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">
<xs:import schemaLocation="docbook.xsd"/>
<xs:attribute name="base"/>
<xs:attribute name="space">
<xs:simpleType>
<xs:restriction base="xs:token">
<xs:enumeration value="preserve"/>
</xs:restriction>
</xs:simpleType>
</xs:attribute>
<xs:attribute name="lang" type="xs:NMTOKEN"/>
</xs:schema>