<XML xmlns:aa="url" xmlns:ab="url">
 <HEADER xmlns:aa="url" xmlns:ab="url">
 </HEADER>
 <DETAIL xmlns:aa="url" xmlns:ab="url">
 <Item>1</Item>
 </DETAIL>
 </XML>

<XML xmlns:aa="url" xmlns:ab="url">
<HEADER>
</HEADER>
<DETAIL>
<Item>1</Item>
</DETAIL>
</XML>