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:
Diana Rigg
Table title:
Honours, Awards and nominations
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Year </th><th colspan=1 rowspan=1 > Award </th><th colspan=1 rowspan=1 > Category </th><th colspan=1 rowspan=1 > Work </th><th colspan=1 rowspan=1 > Result </th></tr>
<tr> <td colspan=1 rowspan=1 > 1967 </td><td colspan=1 rowspan=2 > Emmy Award </td><td colspan=1 rowspan=2 > Best Actress in a Drama Series </td><td colspan=1 rowspan=2 > The Avengers </td><td colspan=1 rowspan=1 > Nominated </td></tr>
<tr> <td colspan=1 rowspan=1 > 1968 </td><td colspan=1 rowspan=1 > Nominated </td></tr>
<tr> <td colspan=1 rowspan=1 > 1970 </td><td colspan=1 rowspan=1 > Laurel Award </td><td colspan=1 rowspan=1 > Female New Face </td><td colspan=1 rowspan=1 > The Assassination Bureau </td><td colspan=1 rowspan=1 > Nominated </td></tr>
<tr> <td colspan=1 rowspan=1 > 1971 </td><td colspan=1 rowspan=1 > Tony Award </td><td colspan=1 rowspan=1 > Best Actress in a Play </td><td colspan=1 rowspan=1 > Abelard and Heloise </td><td colspan=1 rowspan=1 > Nominated </td></tr>
<tr> <td colspan=1 rowspan=1 > 1972 </td><td colspan=1 rowspan=1 > Golden Globe </td><td colspan=1 rowspan=1 > Best Supporting Actress (motion picture) </td><td colspan=1 rowspan=1 > The Hospital </td><td colspan=1 rowspan=1 > Nominated </td></tr>
<tr> <td colspan=1 rowspan=3 > 1975 </td><td colspan=1 rowspan=1 > Tony Award </td><td colspan=1 rowspan=1 > Best Actress in a Play </td><td colspan=1 rowspan=2 > The Misanthrope </td><td colspan=1 rowspan=1 > Nominated </td></tr>
<tr> <td colspan=1 rowspan=1 > Drama Desk Award </td><td colspan=1 rowspan=1 > Outstanding Actress in a Play </td><td colspan=1 rowspan=1 > Nominated </td></tr>
<tr> <td colspan=1 rowspan=1 > Emmy Award </td><td colspan=1 rowspan=1 > Best Actress in a TV Movie </td><td colspan=1 rowspan=1 > In This House of Brede </td><td colspan=1 rowspan=1 > Nominated </td></tr>
<tr> <td colspan=1 rowspan=2 > 1990 </td><td colspan=1 rowspan=1 > BAFTA TV Award </td><td colspan=1 rowspan=1 > Best Actress </td><td colspan=1 rowspan=2 > Mother Love </td><td colspan=1 rowspan=1 > Won </td></tr>
<tr> <td colspan=1 rowspan=1 > Broadcasting Press Guild Award </td><td colspan=1 rowspan=1 > Best Actress </td><td colspan=1 rowspan=1 > Won </td></tr>
<tr> <td colspan=1 rowspan=1 > 1992 </td><td colspan=1 rowspan=1 > Evening Standard Award </td><td colspan=1 rowspan=1 > Best Actress </td><td class="highlighted"  colspan=1 rowspan=4 > Medea </td><td colspan=1 rowspan=1 > Won </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=3 > 1994 </td><td colspan=1 rowspan=1 > Olivier Award </td><td colspan=1 rowspan=1 > Best Actress </td><td colspan=1 rowspan=1 > Nominated </td></tr>
<tr> <td colspan=1 rowspan=1 > Drama Desk Award </td><td colspan=1 rowspan=1 > Outstanding Actress in a Play </td><td colspan=1 rowspan=1 > Nominated </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > Tony Award </td><td class="highlighted"  colspan=1 rowspan=1 > Best Actress in a Play </td><td class="highlighted"  colspan=1 rowspan=1 > Won </td></tr>
<tr> <td colspan=1 rowspan=3 > 1996 </td><td colspan=1 rowspan=1 > CableACE Award </td><td colspan=1 rowspan=1 > Supporting Actress in a Movie or Miniseries </td><td colspan=1 rowspan=1 > Screen Two (1985) – episode "Genghis Cohn" </td><td colspan=1 rowspan=1 > Nominated </td></tr>
<tr> <td colspan=1 rowspan=1 > Olivier Award </td><td colspan=1 rowspan=1 > Best Actress </td><td colspan=1 rowspan=1 > Mother Courage </td><td colspan=1 rowspan=1 > Nominated </td></tr>
<tr> <td colspan=1 rowspan=1 > Evening Standard Award </td><td colspan=1 rowspan=1 > Best Actress </td><td colspan=1 rowspan=1 > Mother Courage and Who's Afraid of Virginia Woolf </td><td colspan=1 rowspan=1 > Won </td></tr>
<tr> <td colspan=1 rowspan=2 > 1997 </td><td colspan=1 rowspan=1 > Olivier Award </td><td colspan=1 rowspan=1 > Best Actress </td><td colspan=1 rowspan=1 > Who's Afraid of Virginia Woolf </td><td colspan=1 rowspan=1 > Nominated </td></tr>
<tr> <td colspan=1 rowspan=1 > Emmy Award </td><td colspan=1 rowspan=1 > Best Supporting Actress in a Miniseries or TV Movie </td><td colspan=1 rowspan=1 > Rebecca </td><td colspan=1 rowspan=1 > Won </td></tr>
<tr> <td colspan=1 rowspan=1 > 1999 </td><td colspan=1 rowspan=1 > Olivier Award </td><td colspan=1 rowspan=1 > Best Actress </td><td colspan=1 rowspan=1 > Britannicus and Phedre </td><td colspan=1 rowspan=1 > Nominated </td></tr>
<tr> <td colspan=1 rowspan=1 > 2000 </td><td colspan=1 rowspan=1 > Special BAFTA Award non-competitive </td><td colspan=1 rowspan=1 > John Steed's partners shared with Honor Blackman, Linda Thorson and Joanna Lumley. </td><td colspan=1 rowspan=1 > The Avengers (and The New Avengers) </td><td colspan=1 rowspan=1 > Awarded </td></tr>
<tr> <td colspan=1 rowspan=1 > 2002 </td><td colspan=1 rowspan=1 > Emmy Award </td><td colspan=1 rowspan=1 > Best Supporting Actress in a Miniseries or TV Movie </td><td colspan=1 rowspan=1 > Victoria & Albert </td><td colspan=1 rowspan=1 > Nominated </td></tr>
<tr> <td colspan=1 rowspan=2 > 2013 </td><td colspan=1 rowspan=1 > Critics' Choice Television Award </td><td colspan=1 rowspan=1 > Best Guest Performer in a Drama Series </td><td colspan=1 rowspan=5 > Game of Thrones </td><td colspan=1 rowspan=1 > Nominated </td></tr>
<tr> <td colspan=1 rowspan=1 > Emmy Award </td><td colspan=1 rowspan=1 > Outstanding Guest Actress in a Drama Series </td><td colspan=1 rowspan=1 > Nominated </td></tr>
<tr> <td colspan=1 rowspan=2 > 2014 </td><td colspan=1 rowspan=1 > Critics' Choice Television Award </td><td colspan=1 rowspan=1 > Best Guest Performer in a Drama Series </td><td colspan=1 rowspan=1 > Nominated </td></tr>
<tr> <td colspan=1 rowspan=1 > Emmy Award </td><td colspan=1 rowspan=1 > Outstanding Guest Actress in a Drama Series </td><td colspan=1 rowspan=1 > Nominated </td></tr>
<tr> <td colspan=1 rowspan=1 > 2015 </td><td colspan=1 rowspan=1 > Emmy Award </td><td colspan=1 rowspan=1 > Outstanding Guest Actress in a Drama Series </td><td colspan=1 rowspan=1 > Nominated </td></tr>
<tr> <td colspan=1 rowspan=3 > 2018 </td><td colspan=1 rowspan=1 > Drama Desk Award </td><td colspan=1 rowspan=1 > Best Featured Actress in a Musical </td><td colspan=1 rowspan=2 > My Fair Lady </td><td colspan=1 rowspan=1 > Nominated </td></tr>
<tr> <td colspan=1 rowspan=1 > Tony Award </td><td colspan=1 rowspan=1 > Best Featured Actress in a Musical </td><td colspan=1 rowspan=1 > Nominated </td></tr>
<tr> <td colspan=1 rowspan=1 > Emmy Award </td><td colspan=1 rowspan=1 > Outstanding Guest Actress in a Drama Series </td><td colspan=1 rowspan=1 > Game of Thrones </td><td colspan=1 rowspan=1 > Nominated </td></tr>
</table>
Question:
Which Tony Award category did Diana Rigg win in 1994 and for which work?
Answer:
In 1994, Diana Rigg won the Tony Award in Medea for Best Actress in a play.