<!DOCTYPE bank 
	SYSTEM "bank_att.dtd" >
<bank>

<!-- customer_num is defined to have ID value.
	An ID value cannot start with a number.
	When you validate this document, the validation will show an error
-->

<customer customer_num="1"
	social_sec_num="2223334444"
	name="Joe"
	city="New Orleans"
	state="LA">
	<account_type
		account_type_code="C"
		balance="100">
		<account_activity
			operation_type="D"
			operation_date="10:12, 03/23/08" 
			amount="99"/>
	</account_type>
	<account_type
		account_type_code="S"
		balance="1"/>
</customer>
<customer
	customer_num="_2"
	social_sec_num="1223334444"
	name="Joe1"
	city="San Francisco"
	state="CA">
	<account_type
		account_type_code="C"
		balance="1">
	</account_type>
</customer>
</bank>

