title: Simple filtering out of common words from a text description
body: <p>Words like "a", "the", "best", "kind". i am pretty sure there are good ways of achieving this</p>
  
  <p>Just to be clear, I am looking for </p>
  
  <ol>
  <li>The simplest solution that can be implemented, preferably in ruby. </li>
  <li>I have a high level of tolerance for errors</li>
  <li>If a library of common phrases is what i need, perfectly happy with that too</li>
  </ol>