1<?xml version="1.0"?>
2<doc>
3 <a>1<b>under1</b>1.5</a>
4 <a>2<b>under2</b>2.5</a>
5 <a>3<b>under3</b>3.5<b>under3.5</b>3.9</a>
6 <a>4<c>under4</c>4.5<b>under4.5</b>4.9</a>
7 <a>5<b>under5</b>5.5<x>under5.5</x>5.9</a>
8 <a>6<b>under6</b>6.5<c>under6.5</c>6.9</a>
9 <a>7<b>under7</b>7.5</a>
10</doc>