title: How to check via XPATH if element exist in all parent's elements
body: <p>If we have an XML document:</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;STICKERINFO&gt;
      &lt;ORDER&gt;
          &lt;NUMBER&gt;0171467783&lt;/NUMBER&gt;
          &lt;STICKER&gt;
              &lt;ARTICLE&gt;03359140001&lt;/ARTICLE&gt;
          &lt;/STICKER&gt;
          &lt;STICKER&gt;
              &lt;ARTICLE&gt;11408038001&lt;/ARTICLE&gt;
          &lt;/STICKER&gt;
      &lt;/ORDER&gt;
      &lt;ORDER&gt;
          &lt;NUMBER&gt;0171473000&lt;/NUMBER&gt;
      &lt;/ORDER&gt;
  &lt;/STICKERINFO&gt;
  </code></pre>
  
  <p>I can check that <code>/STICKERINFO/ORDER/STICKER/ARTICLE</code> exists: </p>
  
  <pre><code>boolean(/STICKERINFO/ORDER/STICKER/ARTICLE)
  </code></pre>
  
  <p>But how can I check if /STICKERINFO/ORDER/STICKER/ARTICLE exists in <strong>all</strong> <code>/STICKERINFO/ORDER/</code>?</p>
  
  <p>In current example XPATH expression should return <code>false</code></p>