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<title>alert 1.0/5.2.1</title>
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<table width="80%" border="1" summary="This data table should use markup to associate multiple levels of row and column headers">
<caption>This data table should use markup to associate multiple levels of row and column headers</caption>
<colgroup> <col> </colgroup>
<colgroup span="2"><col><col></colgroup>
<colgroup> <col> </colgroup>
<tr>
<th scope="row">ID</th>
<th scope="colgroup" colspan="2">System Color or Name</th>
<th scope="col">Required</th>
</tr>
<tr><td>a-1</td><td>blue </td><td> </td><td>yes</td></tr>
<tr><td>a-2</td><td> </td><td>Susan </td><td>yes</td></tr>
<tr><td>a-3</td><td>green </td><td> </td><td>no </td></tr>
<tr><td>a-4</td><td>orange</td><td> </td><td>no </td></tr>
<tr><td>a-5</td><td> </td><td>Frank </td><td>yes</td></tr>
<tr><td>a-6</td><td> </td><td>Harold</td><td>no </td></tr>
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