title: XPath to match space-separated attribute values?
body: <p>I have a XML:</p>
  
  <pre><code>&lt;entities&gt;
    &lt;entity attribute="attribute-value-1 attribute-value-2"&gt;value1&lt;/entity&gt;
    &lt;entity attribute="attribute-value-5 attribute-value-7 attribute-value-8"&gt;value2&lt;/entity&gt;
  &lt;/entities&gt;
  </code></pre>
  
  <p>How can I a select using XPath an entity with attribute value of <code>"attribute-value-7"</code>?</p>