title: How can I select only the first following sibling?
body: <p>Using XPATH, I am trying to get just the ISBN number out of the following:</p>
  
  <pre><code>&lt;span class="product_info_details"&gt;
     &lt;b class=""&gt;ISBN: &lt;/b&gt;1941529429
     &lt;b class=""&gt;Contributors: &lt;/b&gt; (Illustrator)
     &lt;b class=""&gt;Publisher:&lt;/b&gt; Parallax Pr
     &lt;b class=""&gt;Published:&lt;/b&gt; Nov 1 2016
  &lt;/span&gt;
  </code></pre>
  
  <p>Now, when I use:</p>
  
  <pre><code>//span[@class="product_info_details"]/b/following-sibling::text()
  </code></pre>
  
  <p>I get the output:</p>
  
  <pre><code>1941529429
  
  (Illustrator)
  
  Parallax Pr
  
  Nov 1 2016
  </code></pre>
  
  <p>What can I use so that I just get the first value (1941529429) as the result?</p>