other selectable can be turned into an alias using the :meth:`.FromClause.alias`
method, which produces a :class:`.Alias` construct. As an example, suppose we know that our user ``jack`` has two
particular email addresses. How can we locate jack based on the combination of those two
-addresses? To accomplish this, we'd use a join to the ``addresses` table,
+addresses? To accomplish this, we'd use a join to the ``addresses`` table,
once for each address. We create two :class:`.Alias` constructs against
``addresses``, and then use them both within a :func:`.select` construct: