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:
List of leaders of South Yemen
Table title:
Heads of Government
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > № </th><th colspan=1 rowspan=1 > Portrait </th><th colspan=1 rowspan=1 > Name (Birth–Death) </th><th colspan=1 rowspan=1 > Term start </th><th colspan=1 rowspan=1 > Term end </th><th colspan=1 rowspan=1 > Political Party </th><th colspan=1 rowspan=1 > Notes </th></tr>
<tr> <td colspan=7 rowspan=1 > Prime Ministers of the People's Republic of South Yemen </td></tr>
<tr> <th colspan=1 rowspan=1 > 1 </th><td colspan=1 rowspan=1 > - </td><td colspan=1 rowspan=1 > Faysal al-Shaabi فيصل عبد الطيف الشعبي (1935–1971) </td><td colspan=1 rowspan=1 > 6 April 1969 </td><td colspan=1 rowspan=1 > 22 June 1969 </td><td colspan=1 rowspan=1 > National Liberation Front </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <th colspan=1 rowspan=1 > 2 </th><td colspan=1 rowspan=1 > - </td><td colspan=1 rowspan=1 > Muhammad Ali Haitham محمد علي هيثم (1940–1993) </td><td colspan=1 rowspan=1 > 23 June 1969 </td><td colspan=1 rowspan=1 > See below </td><td colspan=1 rowspan=1 > National Liberation Front </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td class="highlighted"  colspan=7 rowspan=1 > Prime Ministers of the People's Democratic Republic of Yemen </td></tr>
<tr> <th class="highlighted"  colspan=1 rowspan=1 > (2) </th><td colspan=1 rowspan=1 > - </td><td class="highlighted"  colspan=1 rowspan=1 > Muhammad Ali Haitham محمد علي هيثم (1940–1993) </td><td colspan=1 rowspan=1 > See above </td><td colspan=1 rowspan=1 > 2 August 1971 </td><td colspan=1 rowspan=1 > National Liberation Front </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <th colspan=1 rowspan=1 > 3 </th><td colspan=1 rowspan=2 > - </td><td colspan=1 rowspan=2 > Ali Nasir Muhammad علي ناصر محمد الحسني (1939–) </td><td colspan=1 rowspan=1 > 2 August 1971 </td><td colspan=1 rowspan=1 > 21 December 1978 </td><td colspan=1 rowspan=1 > National Liberation Front </td><td colspan=1 rowspan=2 >  </td></tr>
<tr> <th colspan=1 rowspan=1 > (3) </th><td colspan=1 rowspan=1 > 21 December 1978 </td><td colspan=1 rowspan=1 > 14 February 1985 </td><td colspan=1 rowspan=1 > Yemeni Socialist Party </td></tr>
<tr> <th colspan=1 rowspan=1 > 4 </th><td colspan=1 rowspan=1 > - </td><td colspan=1 rowspan=1 > Haidar Abu Bakr al-Attas حيدر أبو بكر العطاس (1939–) </td><td colspan=1 rowspan=1 > 14 February 1985 </td><td colspan=1 rowspan=1 > 8 February 1986 </td><td colspan=1 rowspan=1 > Yemeni Socialist Party </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <th colspan=1 rowspan=1 > 5 </th><td colspan=1 rowspan=1 > - </td><td colspan=1 rowspan=1 > Yasin Said Numan ياسين سعيد نعمان (1948–) </td><td colspan=1 rowspan=1 > 8 February 1986 </td><td colspan=1 rowspan=1 > 22 May 1990 </td><td colspan=1 rowspan=1 > Yemeni Socialist Party </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=7 rowspan=1 > Yemen Unification (22 May 1990 – 21 May 1994) </td></tr>
<tr> <td colspan=7 rowspan=1 > Prime Minister of the Democratic Republic of Yemen </td></tr>
<tr> <th colspan=1 rowspan=1 > 6 </th><td colspan=1 rowspan=1 > - </td><td colspan=1 rowspan=1 > Haidar Abu Bakr al-Attas حيدر أبو بكر العطاس (1939–) (in rebellion.) </td><td colspan=1 rowspan=1 > 21 May 1994 </td><td colspan=1 rowspan=1 > 7 July 1994 </td><td colspan=1 rowspan=1 > Yemeni Socialist Party </td><td colspan=1 rowspan=1 >  </td></tr>
</table>
Question:
What happened to Muhammad Ali Haitham on 2 August 1971 after 2 years as Prime Minister?
Answer:
Muhammad Ali Haitham was succeeded by Ali Nasir Muhammad on 2 August 1971 as Prime Minister of the People's Democratic Republic of Yemen.