<p>You had a typing problem.  Because there exists <a href="https://stats.stackexchange.com/questions/tagged/sensitivity-analysis" class="post-tag" title="show questions tagged &#39;sensitivity-analysis&#39;" rel="tag">sensitivity-analysis</a>, after you typed "sensitivity", the system would assume you meant that tag.  <em>As soon as you type another character,</em> it knows you mean something else.  Type a space at that point and you'll be fine.</p>
