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:
2016–17 Hull City A.F.C. season
Table title:
Transfers out
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Date from </th><th colspan=1 rowspan=1 > Position </th><th colspan=1 rowspan=1 > Nationality </th><th colspan=1 rowspan=1 > Name </th><th colspan=1 rowspan=1 > To </th><th colspan=1 rowspan=1 > Fee </th><th colspan=1 rowspan=1 > Ref. </th></tr>
<tr> <td colspan=1 rowspan=1 > 30 June 2016 </td><td colspan=1 rowspan=1 > RW </td><td colspan=1 rowspan=1 > Nigeria </td><td colspan=1 rowspan=1 > Sone Aluko </td><td colspan=1 rowspan=1 > Fulham </td><td colspan=1 rowspan=1 > Free transfer </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 30 June 2016 </td><td colspan=1 rowspan=1 > RB </td><td colspan=1 rowspan=1 > England </td><td colspan=1 rowspan=1 > Ryan Taylor </td><td colspan=1 rowspan=1 > Port Vale </td><td colspan=1 rowspan=1 > Free transfer </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1 July 2016 </td><td colspan=1 rowspan=1 > CB </td><td colspan=1 rowspan=1 > England </td><td colspan=1 rowspan=1 > Ben Clappison </td><td colspan=1 rowspan=1 > York City </td><td colspan=1 rowspan=1 > Free transfer </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 3 August 2016 </td><td colspan=1 rowspan=1 > CM </td><td colspan=1 rowspan=1 > Senegal </td><td colspan=1 rowspan=1 > Mohamed Diamé </td><td colspan=1 rowspan=1 > Newcastle United </td><td colspan=1 rowspan=1 > £4,500,000 </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 12 August 2016 </td><td colspan=1 rowspan=1 > RW </td><td colspan=1 rowspan=1 > Antigua and Barbuda </td><td class="highlighted"  colspan=1 rowspan=1 > Calaum Jahraldo-Martin </td><td class="highlighted"  colspan=1 rowspan=1 > Oldham Athletic </td><td class="highlighted"  colspan=1 rowspan=1 > Free transfer </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 20 January 2017 </td><td colspan=1 rowspan=1 > CM </td><td colspan=1 rowspan=1 > England </td><td colspan=1 rowspan=1 > Jake Livermore </td><td colspan=1 rowspan=1 > West Bromwich Albion </td><td colspan=1 rowspan=1 > Undisclosed </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 27 January 2017 </td><td colspan=1 rowspan=1 > RW </td><td colspan=1 rowspan=1 > Scotland </td><td colspan=1 rowspan=1 > Robert Snodgrass </td><td colspan=1 rowspan=1 > West Ham United </td><td colspan=1 rowspan=1 > £10,200,000 </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 31 January 2017 </td><td colspan=1 rowspan=1 > GK </td><td colspan=1 rowspan=1 > England </td><td colspan=1 rowspan=1 > Rory Watson </td><td colspan=1 rowspan=1 > Scunthorpe United </td><td colspan=1 rowspan=1 > Free transfer </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 3 February 2017 </td><td colspan=1 rowspan=1 > GK </td><td colspan=1 rowspan=1 > Slovakia </td><td colspan=1 rowspan=1 > Dušan Kuciak </td><td colspan=1 rowspan=1 > Lechia Gdańsk </td><td colspan=1 rowspan=1 > Free transfer </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 15 June 2017 </td><td colspan=1 rowspan=1 > CB </td><td colspan=1 rowspan=1 > England </td><td colspan=1 rowspan=1 > Harry Maguire </td><td colspan=1 rowspan=1 > Leicester City </td><td colspan=1 rowspan=1 > Undisclosed </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 16 June 2017 </td><td colspan=1 rowspan=1 > RB </td><td colspan=1 rowspan=1 > England </td><td colspan=1 rowspan=1 > Harvey Rodgers </td><td colspan=1 rowspan=1 > Fleetwood Town </td><td colspan=1 rowspan=1 > Free transfer </td><td colspan=1 rowspan=1 >  </td></tr>
</table>
Question:
What was the free transfer that happened on 12 August 2016 in Hull City A.F.C. season?
Answer:
On 12 August 2016, Calaum Jahraldo-Martin signed for Oldham Athletic on a free transfer.