s</code></p></dd>

<dt>last name</dt>
<dd><p>a factor with levels <code>Amaral</code>, <code>Anderson</code>,
<code>Baines</code>, <code>Belle</code>, <code>Bones</code>, <code>Bordick</code>, <code>Clark</code>,
<code>Conine</code>, <code>Deshields</code>, <code>Erickson</code>, <code>Fetters</code>, <code>Garcia</code>,
<code>Guzman</code>, <code>Johns</code>, <code>Johnson</code>, <code>Kamieniecki</code>, <code>Mussina</code>,
<code>Orosco</code>, <code>Otanez</code>, <code>Ponson</code>, <code>Reboulet