Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| # | Name | Took Office | Left Office | Party |
| --- | --- | --- | --- | --- |
| 1 | Nejat Konuk, 2nd time | 15 November 1983 | 19 July 1985 | National Unity Party |
| 2 | Derviş Eroğlu, 1st time | 19 July 1985 | 1 January 1994 | National Unity Party |
| 3 | Hakkı Atun | 1 January 1994 | 16 August 1996 | Democratic Party |
| (2) | Derviş Eroğlu, 2nd time | 16 August 1996 | 13 January 2004 | National Unity Party |
| 4 | Mehmet Ali Talat | 13 January 2004 | 26 April 2005 | Republican Turkish Party |
| 5 | Ferdi Sabit Soyer | 26 April 2005 | 5 May 2009 | Republican Turkish Party |
| (2) | Derviş Eroğlu, 3rd time | 5 May 2009 | 23 April 2010 | National Unity Party |
| — | Hüseyin Özgürgün (acting) | 23 April 2010 | 17 May 2010 | National Unity Party |
| 6 | İrsen Küçük | 17 May 2010 | 13 June 2013 | National Unity Party |
| 7 | Sibel Siber | 13 June 2013 | 2 September 2013 | Republican Turkish Party |
| 8 | Özkan Yorgancıoğlu | 2 September 2013 | Incumbent | Republican Turkish Party |
Question:
who was the only prime minister to be in office three times?
Answer:
Derviş Eroğlu