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:
Yang Yo-seob
Table title:
Musical 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 </th><th colspan=1 rowspan=1 > Notes </th></tr>
<tr> <td colspan=1 rowspan=1 > 2011 </td><td colspan=1 rowspan=1 > Gwanghwamun Sonata </td><td colspan=1 rowspan=1 > Ji Yong </td><td class="highlighted"  colspan=1 rowspan=7 > Lead Role </td></tr>
<tr> <td colspan=1 rowspan=1 > 2013 </td><td colspan=1 rowspan=1 > Joseph and the Amazing Technicolor Dreamcoat </td><td colspan=1 rowspan=1 > Joseph </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=2 > 2014 </td><td class="highlighted"  colspan=1 rowspan=1 > Full House </td><td class="highlighted"  colspan=1 rowspan=1 > Lee Young-jae </td></tr>
<tr> <td colspan=1 rowspan=1 > Zorro </td><td colspan=1 rowspan=1 > Zorro </td></tr>
<tr> <td colspan=1 rowspan=2 > 2015 </td><td colspan=1 rowspan=1 > Robin Hood </td><td colspan=1 rowspan=1 > Prince Philip </td></tr>
<tr> <td colspan=1 rowspan=1 > Cinderella </td><td colspan=1 rowspan=1 > Prince Christopher </td></tr>
<tr> <td colspan=1 rowspan=1 > 2017 </td><td colspan=1 rowspan=1 > Those Day </td><td colspan=1 rowspan=1 > Moo Young </td></tr>
</table>
Question:
What did Yang Yo-seob  do in 2014?
Answer:
In 2014, Yang participated in Full House as the lead character, Lee Young-jae.