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:
Ruth Madoc
Table title:
Films
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 </th><th colspan=1 rowspan=1 > Notes </th></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 1971 </td><td class="highlighted"  colspan=1 rowspan=1 > Fiddler on the Roof </td><td class="highlighted"  colspan=1 rowspan=1 > Fruma Sarah </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 1972 </td><td class="highlighted"  colspan=1 rowspan=1 > Under Milk Wood </td><td class="highlighted"  colspan=1 rowspan=1 > Mrs Dai Bread Two </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1977 </td><td colspan=1 rowspan=1 > The Prince and the Pauper </td><td colspan=1 rowspan=1 > Moll </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1997 </td><td colspan=1 rowspan=1 > The Pale Horse </td><td colspan=1 rowspan=1 > Sybil Stamfordis </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 2001 </td><td colspan=1 rowspan=1 > Very Annie Mary </td><td colspan=1 rowspan=1 > Mrs Ifans </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 2002 </td><td colspan=1 rowspan=1 > Journey Man </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td></tr>
</table>
Question:
What roles did Ruth Madoc play from 1971-1972?
Answer:
In 1971, Ruth Madoc played the role of Fruma Sarah in the film Fiddler on the Roof, and in 1972, she appeared as Mrs. Dai Bread Two in the film Under Milk Wood.