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:
Nisha Kalema
Table title:
Filmography
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 colspan=1 rowspan=2 > 2014 </td><td colspan=1 rowspan=1 > Hanged For Love </td><td colspan=1 rowspan=1 > Jackie </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > Galz About Town </td><td colspan=1 rowspan=1 > Clara </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 2015 </td><td class="highlighted"  colspan=1 rowspan=1 > The Tailor </td><td class="highlighted"  colspan=1 rowspan=1 > Grace </td><td class="highlighted"  colspan=1 rowspan=2 > Won Best Actress at UFF Awards </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=4 > 2016 </td><td class="highlighted"  colspan=1 rowspan=1 > Freedom </td><td class="highlighted"  colspan=1 rowspan=1 > Amelia </td></tr>
<tr> <td colspan=1 rowspan=1 > The Only Son </td><td colspan=1 rowspan=1 > Diana </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > Ugandan Pollock </td><td colspan=1 rowspan=1 > Lee Krassner </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > Jinxed </td><td colspan=1 rowspan=1 > Prossy </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 2018 </td><td class="highlighted"  colspan=1 rowspan=1 > Veronica's Wish </td><td class="highlighted"  colspan=1 rowspan=1 > Veronica </td><td class="highlighted"  colspan=1 rowspan=1 > Won Best Actress at UFF Awards </td></tr>
</table>
Question:
For what roles did Nisha Kalema win 3 Best Actress Awards at the Uganda Film Festival Awards in 2015, 2016 and 2018?
Answer:
Nisha Kalema won 3 Best Actress Awards at the Uganda Film Festival Awards in 2015, 2016 and 2018 for her roles as Grace in The Tailor, Amelia in Freedom and Veronica in Veronica's Wish respectively.