Creating XML document via SQL - Db2 for i 7.2

I am trying to create an XML document using SQL and am having a very difficult time just using the SQL XML Programming Manual and the SQL Reference.

I am trying to create a document that looks like this, writing out to an IFS file.

<Request>
<Product>
<Profile>
<Data>
<field1>1</field1>
<field2>2</field2>
</Data>
<NewGroup>
<field3>1</field3>
<field4>2</field4>
</NewGroup>
</Profile>
</Product>
</Request>

I am really looking for more than a 1 liner on what the various functions do like XMLCONCAT (and a couple examples), or how do you create parent/child groupings like product/profile....
Trial and error is driving me crazy (er)......

TIA

Jim Bostwick