Adjust Namespaces In Generated XML

I'm having trouble getting the namespaces correct in the XML that is generated by SQL. The XML consists of two parts: a header part with some context information and the payload part with the actual data. With my current SQL script, the namespace is also copied to the payload part.

Here are some DDL and DML scripts to generate two test tables and some test data:

Code:
CREATE TABLE dbo.context(
idintNOT NULLconstraint pk_dbo_context primary key,
namenvarchar(100)NOT NULL
)
INSERT INTO dbo.context(id, name) VALUES (1, 'Here comes some great context information.')

[Code] ....

This is my current FOR XML script that generates the XML:

Code:
;WITH XMLNAMESPACES (DEFAULT 'http://services.registersubscription-02_00.a.cool.url.com')
SELECT
CEXT.name AS [Context/Name],
(SELECT
CONT.id AS [Content/Reference],

[Code] ....

This generates this XML (notice that the namespace is repetated in the <Questions> element):

Code:
<RegisterSubscription xmlns="http://services.registersubscription-02_00.a.cool.url.com">
<Request>
<Context>
<Name>Here comes some great context information.</Name>

[Code] ....

The XML should be like this:

Code:
<RegisterSubscription xmlns="http://services.registersubscription-02_00.a.cool.url.com">
<Request xmlns="">
<Context>
<Name>Here comes some great context information.</Name>

[Code] ....

The generated XML does not pass the XSD validation.