In reply to mostly harmless: The post above is correct any_string_here is the identifier for the subquery above it. In SQL Server syntax, subqueries must have identifiers even if you then do not use them.
YOu can test this by trying this query
--------
SELECT A,B,C FROM
(SELECT A, B, C FROM TABLE)
any_string_here
------------
then this one
-------------
SELECT any_string_here.A,B,C FROM
(SELECT A, B, C FROM TABLE)
any_string_here
------------
then this one
------------
SELECT another_string_here.A,B,C FROM
(SELECT A, B, C FROM TABLE)
any_string_here
-----------
The first two will work, the last will fail because the 'multipart identifier another_string_here.A could not be bound' or some such error.