tr>
<tr>
<td valign="baseline" colspan="1" align="left"></td></tr></tbody></table>
</p>
<table class="tight"><tbody><tr>
<td valign="baseline" colspan="1" align="left">
<nobr><var>atomic-event-class</var> ::=</nobr> </td><td valign="baseline" colspan="1" align="left"> <var>event-class</var> | 
<var>event-class-name</var> </td></tr>
<tr>
<td valign="baseline" colspan="1" align="left"></td></tr></tbody></table>
<table class="tight"><tbody><tr>
<td valign="baseline" colspan="1" align="left">
<nobr><var>subeven