1<?xml version="1.0" encoding="UTF-8"?> 2<book xmlns:xi="http://www.w3.org/2001/XInclude" xmlns:xlink="http://www.w3.org/1999/xlink"> 3 <chapter> 4 <para xml:id="t100">Introduction</para> 5 </chapter> 6 <chapter> 7 <para xml:id="t100">Introduction</para> 8 </chapter> 9</book> 10