title: What is the correct XPath for choosing attributes that contain "foo"?
body: <p>Given this XML, what XPath returns all elements whose <code>prop</code> attribute contains <code>Foo</code> (the first three nodes):</p>
  
  <pre><code>&lt;bla&gt;
   &lt;a prop="Foo1"/&gt;
   &lt;a prop="Foo2"/&gt;
   &lt;a prop="3Foo"/&gt;
   &lt;a prop="Bar"/&gt;
  &lt;/bla&gt;
  </code></pre>