Please read the following table in HTML format from a webpage and then answer the question in detail according to the table. Each table cell is defined by a <td> and a </td> tag. Each table row starts with a <tr> and ends with a </tr> tag. 'rowspan=m' and 'colspan=n' represents a cell spaning over 'm' rows and 'n' columns.

Webpage title:
Marcia Mitzman Gaven
Table title:
Theatre
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Year </th><th colspan=1 rowspan=1 > Title </th><th colspan=1 rowspan=1 > Role(s) </th><th colspan=1 rowspan=1 > Ref. </th></tr>
<tr> <td colspan=1 rowspan=1 > 1979 </td><td colspan=1 rowspan=1 > Grease </td><td colspan=1 rowspan=1 > Betty Rizzo (replacement) </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1980 </td><td colspan=1 rowspan=1 > The Rocky Horror Show </td><td colspan=1 rowspan=1 > Janet </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1984 </td><td colspan=1 rowspan=1 > Oliver! </td><td colspan=1 rowspan=1 > Londoner, Nancy (understudy) </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1984 </td><td colspan=1 rowspan=1 > Zorba </td><td colspan=1 rowspan=1 > The Widow </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1985 </td><td colspan=1 rowspan=1 > Nine </td><td colspan=1 rowspan=1 > Luisa </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1986 </td><td colspan=1 rowspan=1 > Brigadoon </td><td colspan=1 rowspan=1 > Meg Brockie </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1987 </td><td colspan=1 rowspan=1 > South Pacific </td><td colspan=1 rowspan=1 > Nellie Forbush </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1987 </td><td colspan=1 rowspan=1 > Sweeney Todd </td><td colspan=1 rowspan=1 > Mrs. Lovett </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1988 </td><td colspan=1 rowspan=1 > Anything Goes </td><td colspan=1 rowspan=1 > Reno Sweeney </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1988 </td><td class="highlighted"  colspan=1 rowspan=1 > Oliver! </td><td class="highlighted"  colspan=1 rowspan=1 > Nancy </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1988 </td><td colspan=1 rowspan=1 > Chess </td><td colspan=1 rowspan=1 > Svetlana </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1989 </td><td colspan=1 rowspan=1 > Welcome to the Club </td><td colspan=1 rowspan=1 > Carol Bates </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 1990 </td><td class="highlighted"  colspan=1 rowspan=1 > Oliver! </td><td class="highlighted"  colspan=1 rowspan=1 > Nancy </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1991 </td><td colspan=1 rowspan=1 > A Little Night Music </td><td colspan=1 rowspan=1 > Countess Charlotte Malcolm </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1991 </td><td colspan=1 rowspan=1 > Here's Love </td><td colspan=1 rowspan=1 > Doris Walker </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1992 </td><td colspan=1 rowspan=1 > The Tin Pan Man </td><td colspan=1 rowspan=1 > Margie </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1992 </td><td colspan=1 rowspan=1 > The Who's Tommy </td><td colspan=1 rowspan=1 > Mrs. Walker </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1992 </td><td colspan=1 rowspan=1 > Here's Love </td><td colspan=1 rowspan=1 > Doris Walker </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1993 </td><td colspan=1 rowspan=1 > The Who's Tommy </td><td colspan=1 rowspan=1 > Mrs. Walker </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1993 </td><td colspan=1 rowspan=1 > Sweet, Smart, Rodgers & Hart </td><td colspan=1 rowspan=1 > Lead singer </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1994 </td><td colspan=1 rowspan=1 > Show Boat </td><td colspan=1 rowspan=1 > Julie Dozier </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1995 </td><td colspan=1 rowspan=1 > A Little Night Music </td><td colspan=1 rowspan=1 > Countess Charlotte Malcolm </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1995 </td><td colspan=1 rowspan=1 > Chess </td><td colspan=1 rowspan=1 > Florence Vassy </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1997 </td><td colspan=1 rowspan=1 > Ragtime </td><td colspan=1 rowspan=1 > Mother </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 2000 </td><td colspan=1 rowspan=1 > Triumph of Love </td><td colspan=1 rowspan=1 > Hesione </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 2001 </td><td colspan=1 rowspan=1 > Show Boat </td><td colspan=1 rowspan=1 > Julie Dozier </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 2001 </td><td colspan=1 rowspan=1 > 1776 </td><td colspan=1 rowspan=1 > Abigail Adams </td><td colspan=1 rowspan=1 >  </td></tr>
</table>
Question:
What did Gaven do for his theatrical career in 1990, and was this a new or a revival of a prior performance?
Answer:
In 1990, Gaven once again appeared as Nancy in a revival of, "Oliver!".