title: XQuery: Return value of an element rather the element itself
body: <p>I have an XML document that contains the following</p>
  
  <pre><code>...
  &lt;foo&gt;abc&lt;/foo&gt;
  ...
  </code></pre>
  
  <p>If I evaluate</p>
  
  <pre><code>return $xml//foo
  </code></pre>
  
  <p>I get back</p>
  
  <pre><code>&lt;foo&gt;abc&lt;/foo&gt;
  </code></pre>
  
  <p>Is there any way to get just <code>abc</code> instead?</p>