Removed an extra "that" in a sentence.
then links to ORM objects using the :func:`_orm.aliased` function. This works
in the same way introduced at :ref:`tutorial_subqueries_orm_aliased`, to first
create an ad-hoc "mapping" of our desired entity to the subquery, then
-selecting from that that new entity as though it were any other mapped class.
+selecting from that new entity as though it were any other mapped class.
In the example below, we are able to add additional criteria such as ORDER BY
outside of the UNION itself, as we can filter or order by the columns exported
by the subquery::