1<?xml version="1.0"?> 2<!DOCTYPE doc [ 3 <!ELEMENT doc (l1)> 4 <!ATTLIST doc id ID #REQUIRED> 5 <!ELEMENT l1 (l2)> 6 <!ELEMENT l2 (l3)> 7 <!ELEMENT l3 EMPTY> 8 <!ELEMENT v (#PCDATA)> 9]> 10<doc id='abc'> 11 <l1> 12 <v>Text from doc/l1/v</v> 13 <l2> 14 <v>Text from doc/l1/l2/v</v> 15 <l3> 16 <v>Text from doc/l1/l2/l3/v</v> 17 </l3> 18 <w>Text from doc/l1/l2/w</w> 19 </l2> 20 </l1> 21</doc>