table tags

I'd like to extract tables into my node body but xpath not accept it.

     <xmlbody>
      ...
      <table id="x"> 
        <tbody> 
          <tr> 
            <td>a</td>  
            <td>b</td>  
            <td>c</td> 
          </tr>  
          <tr> 
            <td>d</td>  
            <td>e</td>  
            <td>f</td> 
          </tr>  
        </tbody> 
      </table>
      ...
    <xmlbody>

will be imported as
a b c d e f

Whats wrong here?