xpath to find value in html code

[hpnhwt]

I want to use xpath to get the value "National Aeronautics and Space Administration" only from the html below\[code\] <table style="margin: 0 5px 0 2px; font-size: 8pt;" class="joaResultsDetailsTable"> <tr> <td><strong>Department:</strong></td> <td>National Aeronautics and Space Administration</td> </tr> <tr> <td style="width: 112px;"><strong>Agency:</strong></td> <td>George C. Marshall Space Flight Center</td> </tr> <tr> <td><strong>Open Period:</strong></td> <td>9/10/2012 to 9/14/2012</td> </tr> <tr> <td><strong>Who May Apply:</strong></td> <td> Current students from education institutions interested in paid opportunities wi... </td> </tr> <tr> <td style="vertical-align:top;"><strong>Location(s):</strong></td> <td>Huntsville, Alabama</td> </tr> </table>\[/code\]I hope if you can help