1<?xml version="1.0"?> 2<doc> 3 <chapter> 4 <note flag="yes">aaa</note> 5 <note flag="no">bbb</note> 6 <note flag="no">ccc</note> 7 <note flag="yes">ddd</note> 8 <note flag="yes">eee</note> 9 </chapter> 10 <chapter> 11 <note flag="no">fff</note> 12 <note flag="yes">ggg</note> 13 <note flag="yes">hhh</note> 14 </chapter> 15 <chapter> 16 <note flag="yes">aaa</note> 17 <note flag="yes">bbb</note> 18 <note flag="no">ccc</note> 19 <note flag="yes">ddd</note> 20 <note flag="no">eee</note> 21 </chapter> 22</doc>