anchor.diff:      </tr>
       <!-- Keynote -->
       <tr>
  -      <td class="time">9:15</td>
  +      <td class="time">9:15&nbsp;&#8209;&nbsp;10:00</td>
         <td colspan="3" class="slot foaje">
           <div class="event">Keynote: Bjarte Bogsnes</div>
           <span class="location right">Olympia</span>
  
positive.code:     <tr>
        <td class="time">17:30</td> 
        <td colspan="3" class="slot restaurant"> 
          <div class="event">Middag</div><span class="location right">Radisson BLU</span>
        </td> 
      </tr> 
    </tbody> 
  
negative.code:       <td class="time">12:00&nbsp;&#8209;&nbsp;13:15</td> 
        <td colspan="3" class="slot restaurant"> 
          <div class="event">Lunsj</div>
          <span class="location right">Restauranten</span> 
        </td> 
      </tr> 
      <tr>
        <td class="time">13:15&nbsp;&#8209;&nbsp;13:45</td> 
        <td colspan="3" class="slot salOlympia"> 
          <div class="event">Planlegging av Open Space</div><span class="location right">Olympia</span> 
        </td> 
      </tr>    <tr>
        <td class="time">13:45&nbsp;&#8209;&nbsp;14:30</td> 
        <td colspan="3" class="slot salOlympia"> 
          <div class="event">Open Space sesjon</div><span class="location right">Olympia</span> 
        </td> 
      </tr> 
      <tr>
        <td class="time">14:30&nbsp;&#8209;&nbsp;15:15</td> 
        <td colspan="3" class="slot salOlympia"> 
          <div class="event">Open Space sesjon</div><span class="location right">Olympia</span> 
        </td> 
      </tr> 
      <tr>
  