<?xml version="1.0" encoding="UTF-8"?>
<!--
  DocBook Version 5.1
  OASIS Standard 
  22 November 2016
  Copyright (c) OASIS Open 2016. All Rights Reserved.
  Source: http://docs.oasis-open.org/docbook/docbook/v5.1/os/schemas/
  Link to latest version of specification: http://docs.oasis-open.org/docbook/docbook/v5.1/docbook-v5.1.html
     -->
     <rules xmlns="http://purl.oclc.org/dsdl/nvdl/ns/structure/1.0"
       startMode="docbook">

<mode name="docbook">
  <namespace ns="http://docbook.org/ns/docbook">
    <validate schema="rng/docbook.rng" useMode="attach"/>
    <validate schema="sch/docbook.sch" useMode="attach"/>
  </namespace>
</mode>

<mode name="attach">
  <anyNamespace>
    <attach/>
  </anyNamespace>
</mode>

</rules>
