[O] document structure question

[Colin Fraizer]

If I have an org document like the one below, is there a way to tell org
that a subtree has ended such that the text that starts "Finally" is part of
the logical unit that starts with Headline 1, but *not* part of the subunit
Subheadline 1.2?

With lists I can use two blank lines to end the list item. Is there a
similar mechanism for subtrees?

--BEGIN--
* Headline 1
I have some text.

And more text.

** Subheadline 1.1
Some subtext.

** Subheadline 1.2
Additional subtext.

Finally, I'd like more text that is considered part of the logical "Headline
1", but not part of "Subheadline 1.2".

* Headline 2
Additional text.
--END--

Thanks,
--Colin Fraizer