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:
Hyomin
Table title:
Singles
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=2 > Title </th><th colspan=1 rowspan=2 > Year </th><th colspan=3 rowspan=1 > Peak chart positions </th><th colspan=1 rowspan=2 > Sales </th><th colspan=1 rowspan=2 > Album </th></tr>
<tr> <th colspan=1 rowspan=1 > KOR Gaon </th><th colspan=1 rowspan=1 > KOR Billboard </th><th colspan=1 rowspan=1 > CHN V Chart </th></tr>
<tr> <th colspan=1 rowspan=1 > "Nice Body" </th><td colspan=1 rowspan=1 > 2014 </td><td colspan=1 rowspan=1 > 13 </td><td colspan=1 rowspan=1 > 18 </td><td colspan=1 rowspan=1 > 2 </td><td colspan=1 rowspan=1 > KOR: 229,290 </td><td colspan=1 rowspan=1 > Make Up </td></tr>
<tr> <th class="highlighted"  colspan=1 rowspan=1 > "Sketch" </th><td class="highlighted"  colspan=1 rowspan=2 > 2016 </td><td colspan=1 rowspan=1 > 120 </td><td colspan=1 rowspan=2 > No data </td><td colspan=1 rowspan=1 > 1 </td><td colspan=1 rowspan=1 > KOR: 13,515 </td><td class="highlighted"  colspan=1 rowspan=2 > Sketch </td></tr>
<tr> <th class="highlighted"  colspan=1 rowspan=1 > "Gold" </th><td colspan=1 rowspan=1 > — </td><td colspan=1 rowspan=1 > — </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <th colspan=1 rowspan=1 > "Mango" </th><td colspan=1 rowspan=1 > 2018 </td><td colspan=1 rowspan=1 > — </td><td colspan=1 rowspan=1 > — </td><td colspan=1 rowspan=1 > 3 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=3 > Allure </td></tr>
<tr> <th colspan=1 rowspan=1 > "U Um U Um" </th><td colspan=1 rowspan=2 > 2019 </td><td colspan=1 rowspan=1 > — </td><td colspan=1 rowspan=1 > — </td><td colspan=1 rowspan=1 > 3 </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <th colspan=1 rowspan=1 > "Allure" </th><td colspan=1 rowspan=1 > — </td><td colspan=1 rowspan=1 > — </td><td colspan=1 rowspan=1 > 2 </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=8 rowspan=1 > "—" denotes releases that did not chart or were not released in that region. </td></tr>
</table>
Question:
What works of art did Hyomin release in 2016?
Answer:
In 2016, Hyomin released "Sketch" and "Gold" from her second album Sketch.