document mentions `creating instances of "User" and "Address" objects` which is a mistake as we create instances or objects from classes.
---------------------------
We are now ready to insert data in the database. We accomplish this by
-creating instances of ``User`` and ``Address`` objects, which have
+creating instances of ``User`` and ``Address`` classes, which have
an ``__init__()`` method already as established automatically by the
declarative mapping process. We then pass them
to the database using an object called a :ref:`Session <tutorial_executing_orm_session>`,