graph {
  node1 [label=<
    <table>
      <tr><td colspan="5">This is a very long top row</td></tr>
      <tr>
        <td>1</td>
        <td>2</td>
        <td>3</td>
        <td>4</td>
        <td>5</td>
      </tr>
    </table>>, shape=plaintext];
  node2 [label=<
    <table>
      <tr><td colspan="5">This is a very long top row</td></tr>
      <tr>
        <td width="16" height="22" fixedsize="true">1</td>
        <td>2</td>
        <td>3</td>
        <td>4</td>
        <td>5</td>
      </tr>
    </table>>, shape=plaintext];
}
