Based on feedback from Ben Finney.
</p>
<p>
- Sometimes, a package requires another package to be unpacked
- <em>and</em> configured before it can be unpacked. In this
- case, the dependent package must specify this dependency in
+ Sometimes, unpacking one package requires that another package
+ be first unpacked <em>and</em> configured. In this case, the
+ dependent package must specify this dependency in
the <tt>Pre-Depends</tt> control field.
</p>