mple, the elements of the <code>employees</code> set that are
not also members of the <code>neighbors</code> set are removed. In particular, the
names <code>&quot;Alicia&quot;</code>, <code>&quot;Chris&quot;</code>, and <code>&quot;Diana&quot;</code> are removed.</p>
<pre><code class="language-swift">var employees: Set = [&quot;Alicia&quot;, &quot;Bethany&quot;, &quot;Chris&quot;, &quot;Diana&quot;, &quot;Eric&quot;]
let neighbors: Set = [&quot;Bethany&quot;, &quot;Eric&quot;, &quot;Forlani&quot;, &quot;Gre