<?xml version="1.0"?>
<!-- The first step is to name and define our documents-->
<!DOCTYPE address_book [
<!ELEMENT address_book (record+)>
<!ELEMENT record (name, (address | contact))>
<!ELEMENT name (#PCDATA)>
<!ELEMENT address (#PCDATA)>
<!ELEMENT contact (#PCDATA)>
]>

<address_book>
	<record>
   		<name> </name>
   		<address> </address>
   </record>
</address_book>
