<!DOCTYPE table PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
          "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd">
<table frame='all'><title>Sample Table</title>
<tgroup cols='5' align='left' colsep='1' rowsep='1'>
<colspec colname='c1'/>
<colspec colname='c2'/>
<colspec colname='c3'/>
<colspec colnum='5' colname='c5'/>
<thead>
<row>
  <entry namest="c1" nameend="c2" align="center">Horizontal Span</entry>
  <entry>a3</entry>
  <entry>a4</entry>
  <entry>a5</entry>
</row>
</thead>
<tfoot>
<row>
  <entry>f1</entry>
  <entry>f2</entry>
  <entry>f3</entry>
  <entry>f4</entry>
  <entry>f5</entry>
</row>
</tfoot>
<tbody>
<row>
  <entry>b1</entry>
  <entry>b2</entry>
  <entry>b3</entry>
  <entry>b4</entry>
  <entry morerows='1' valign='middle'><para>  <!-- Pernicous Mixed Content -->
  Vertical Span</para></entry>
</row>
<row>
  <entry>c1</entry>
  <entry namest="c2" nameend="c3" align='center' morerows='1' valign='bottom'>Span Both</entry>
  <entry>c4</entry>
</row>
<row>
  <entry>d1</entry>
  <entry>d4</entry>
  <entry>d5</entry>
</row>
</tbody>
</tgroup>
</table>